Please don't. It's not too late to delete.

It is now!!!

He he he

"So, to kill some time until Saturday, let me start the 50th post in the this Forum about the unused screws above the Bottom Bracket on thousands of Cervelo P2, P3 and P5. Looking around in the worlds transit zones, I really don't understand why somebody hasn't jumped on this yet. I understand the measurements are unique for every size, however with 3D printers being more widely available it shouldn't be the biggest obstacle anymore, and people who spend 3-10.000 USD on bicycles usually have some money left for smart storage solutions. Here is what I have gathered so far:
1) TorHans apparently has the 3D printer files ready for years, however waiting for (the money from?) Cervelo. If Cervelo didn't confirm for many years, they will certainly not do it anytime soon when they want to sell the P5X with the main selling point of integrated storage/nutrition solutions. So these files sit on a server somewhere and will never see daylight, while lots of people wait for exactly this product. A little bit of a shame. Having contacted them, they said it is intellectual property and they are not giving it out. I totally understand that, but it is a shame
2) Drag2Zero said they will be looking into producing something for the P Series similar to what Sebastian Kienle will be using on Saturday in Kona on his Scott Plasma 5. However, no news on that front, and they didn't answer my question for updates yet. Having a look at my P5 with the Elite Crono bottle the shape doesn't look too different to what the Scott Plasma unit currently has, I wonder if anyone has tried to make it fit with a few alterations?
3) You can find a few "do it yourself" options in this forum, some converted from other units, and some built completely from scratch. Some interesting approaches for people who love to work on their bikes, but nothing that would satisfy the masses of bike owners out there
4) Did I miss anything?

Pleased to hear your thoughts! "

Just curious, but does anyone know why would TorHans be waiting for money or anything else from Cervelo? If they already have a spec, the ability to produce, and a pretty large number of potential buyers (a good % of whom would probably jump on something like this), why wouldn't they just bring it to market? It seems like a pretty solid bet they would sell a large number, so I must be missing something.

Probably because it is a slower setup than nothing in the frame, and all around inferior to a behind the seat setup, which can be made drag neutral or even make you faster.

Possibly, even though they would sell thousands before anyone would take it the windtunnel to find out, and even afterwards.

But unlikely, if Sebastian Kienle is using something similar in Kona. I know every bike is different, but since I don't think he is taking a flat kit with him having the technical service directly behind him, its probably empty, which means his bike is MORE aero with it than without it. And he spends more time in windtunnels and on tracks than some of us spend on the bike at all. Doubt something very similar is more aero on the Plasma 5 but has a major aero penalty on a P5.

The market is too low for something like this. How many people own the newer P2/P3 or P5 that can use this? They would be making a part for 3 bikes only. The manufacturing costs would probably exceed their profit.

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Take a look at the BB bottle in the pics of the Airstreeem bike from Kona.

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I'm closer to the feathered end of the spear than the point.

Here's to hoping they do it anyway. I mean it's plastic molded/printed into a specific shape that will cost, I dunno $75-$100, right? The margins on each unit should be pretty healthy I would imagine.

That was made by the company for that bike

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Now D2Z launched a new homepage with their frame storage solution in the shop:

https://drag2zero.co.uk/...-plasma-storage-box/

And they claim: "The placement and shape of the storage box assists with air flow around the frame, improving aerodynamics over no bottle"

To complement the Plasma 5 frame we have designed a Plasma specific storage box.

Don't use it for a P5.

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You would be horrified at the mould costs for blow moulded plastic (which is the most likely way to make this part). A company would need to be sure of selling thousands of units to make it a worthwhile product

I've been thinking about designing up and 3D printing something similar for the Elite CX bottle on my NP2...I'll be field testing it over no bottle on DT, of course ;-)

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Approximately 800$, it is what cost me mine

I am currently in the process of designing a custom fitted storage box for the new P2 and P3 frames. I used all 3 of the screws to help secure it, and I think the bottom screw is invaluable. Once everything is done up tight it doesn't move. That's with the weight of a few C02 cylinders, 2 tubes, minitool and some other puncture related equipment inside too.
Attached are some pics of my work in process, I can only realistically make this using 3D printing, as the internal design is quite unique. I've used 3D printing a lot so I'm confident it'll work.
Currently it's just to put on my own bike, but if others need it I may make a few.




Phillip

Sign me up for one!!

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Your speed matters a lot, sometimes you need to be very fast, where sometimes you need to breakdown your speed.

That looks great!
What size is your bike? I believe what didn't make financial sense for Torhans is that frame sizes change the geometry of the down/ seat tubes. So each storage unit would be size specific.

Yesssssssss please! Do you have all the frame size measurements?

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The point is, ladies and gentleman, that speed, for lack of a better word, is good. Speed is right, Speed works. Speed clarifies, cuts through, and captures the essence of the evolutionary spirit.

Winner!

If you are going to do a run of several, sign me up for one!

I'm assuming it will fit on the P2 just as well as it fits on the P3?

If you are taking orders, I would also like to beta test this. :) What would you charge and do you need to know individual frame size? That is awesome!

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That's fantastic, would definitely love to snag one of these.

What exactly is the reason why this doesn't exist already?

I would be interested too!!

Sign me up please!!!!!

Please share supplier cause tooling in Taiwan is crazy expensive as David said. My stem covers quote is 24,000 usd for my new stem design for plastic injection tooling.

Really cool, thanks for sharing Phillip. Frame size I would guess a 54?

May I ask why you chose exactly that size, is that the size that comes out when you want to use all 3 screws? I guess a normal flat kit for most people on raceday will consist of 1 CO2 Cylinder, one tube and potentially a minitool, but yours seems to have plenty of extra space.

If it'll fit a 54, I will absolutely take one.

Im also intrested, need one for a 56cm P3.

Would love to have one of these for an older P2C but if I have a newer frame, I would get one of these in a second.

Could a bottle be mounted on top of it? If so I'm in.

Interested. 56 P5.

Thank you!

A general question about 3d-printing, if one have some blueprints could You leave them to any 3d-printing company and have a box made with good result? If so, maybe it would be possible to just sell blueprints? The problem might of course be if anyone buys one blueprint and then produces many boxes and sell them without approval from the original creator.

Thanks for your interest everyone, didn't realise so many of you were interested in something like this.
I'll try answer some questions regarding it.

My bike is a 58, I believe you need a separate design to suit each size correctly. The 52 would be slightly smaller than the 58 for example.
It should fit both the new P2 and P3 frames, as they're the same. The P5 would need a different version as it has that taller BB.

LuckyLo, I agree this is why larger companies have not bothered. The cost to 3D print an individual container is far higher than the cost to mould one, but the cost of making several different moulds to suit each size is prohibitive, meaning that 3D printing is the only viable option.
On that note, to anyone potentially interested - the containers will likely be around US$300 each due to print costs.

culpritbicycles, are you wanting to 3D print them? For mine I'll likely use Shapeways which is based in New York. However depends what you need from your part, to get the geometry of mine I use Nylon SLS, but to make it waterproof etc it needs to be sealed afterwards as a post process.

Ben6, no problem mate, funny how so many people have looked at that bottom screw and thought "what if".
The large size is because I wanted to have everything in one place - tools, air, tubes, tyre levers etc. Also somewhere to stuff a light jacket on training rides. I usually race on tubular tyres which take up a bit more space than inner tubes too. But in saying that there's no reason there couldn't be a smaller version for people who don't want to carry so much.

Pad, it depends on which company, some are better than others. It's usually better to find one you're happy with and stick to that, as long as the results are consistent. Yes, correct, in this digital age the design is where the real value for the creator is.

Sorry for the long post, I'm going to look into different sizes and a P5 version whilst I'm waiting for my latest test piece to be delivered.

$300 each, ha good luck getting anyone to buy one at that price point.

As others have pointed out the biggest factor into making these is making moulds for each frame size.

The real question is, what are people willing to pay for this type of storage solution? $75, $100, $125????? Surely not $300......

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The Drag2Zero one for the Scott Plasma 5 seels at GBP 180, so roughly 235 USD, while being much smaller, and they are said to be "flying off the shelf". So 300 USD sounds about right for this bigger storage solution. Maybe somebody who bought a P2 105 on sale for USD 2000 will not end up sticking a USD 300 storage box on that bike, but any high end P3 or P5 is expensive enough to make the money for a smart storage solution appear small. Especially in times when more than 10% of the Kona finishers are buying Ceramic Speed parts....

If its done right, with that I mean at least earo-neutral, better even improving aerodynamics, I am sure there will be a customer base.

Any chance you went out and field tested it to see if it's faster, slower, or neutral?

Little things can make big differences down there, no?

I doubt that is him making much if any profit. 3D printing large (this is fairly large in the 3D printing world) is fairly expensive. For those of you asking why no company is making anything like this....here is your answer.

A couple of notes on the cost.

I haven't yet finished making a complete and final one so all estimated costs are ballpark, they're not hardline.
Yes I agree $300 is a lot. For this particular size there are a couple ways I think I can bring this down closer to $250, but as pyrahna mentioned this really is mostly covering production costs. However, size is a major determining factor in 3D print costs, so for people who don't need as much storage there could be a smaller version, which will be cheaper too. Also a P5 version would be cheaper, as it essentially has the bottom cut off, to fit on the P5's BB gusset.

The reality is that this will not be for everyone, for people on a tight budget it wont represent the best bang for buck. To be honest as an athlete myself, I would rather people sort out bike fits, a comfy saddle, quality nutrition, aero wheels etc before worrying about something like this.

All, I've been designing a rear storage solution for my P5, since I use the down tube for an aero water bottle.


I've been tweaking it so that it works correctly. It attaches to the seat post and sits right behind the frame above the rear wheel.


Taking it out for a test run tomorrow to see how well it holds up. If it works, I'll get it 3d printed at shapeways. My bike is a 54.


Video of the 3d printed prototype installed on my bike. The printer's output is a bit crude but it does the job.


Video of spinning around the 3d model in Autodesk Fusion 360.

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At this point I blame Cervelo for the lack of storage options. Trek, Felt, QR, Canyon, Specialized all have stepped up to offer storage solutions for long course athletes. Cervelo has left its owners hanging with a useless bolt in their frames while they were developing a $15/$11k super bike. So what Cervelo has told me, in effect, is that if I want clean repair/nutrition storage on my frame I need to spend more than $10k, or send time and money trying to create a storage solution myself. I'm seriously considering selling my P3 and moving to an IA or Shiv due to Cervelo's inaction over this, and will not recommend the P2/3 to friends.

Of course they are to blame. I can understand the logic that they don't want to upgrade the P5 as they want to sell their P5X, but I feel sorry for the P2 and P3 owners. The only alternative if they want storage for their low to middle priced bikes is to switch brands.... Just look at the nice new slowtwitch series about the 2500-3000$ bikes. All of them have storage options apart from the P2.

I guess the main fault is that the frame triangle has different measurements for each size. If it would be a "one size fits all" like the top tube bosses for bento boxes, someone would have produced something already.

As a Cervelo P2 rider myself, I agree. I have the old P2 and to see the Shiv, Speed Concepts, and IAs on the market with much better designs for triathlon makes me jealous. Cervelo's slogan of "Simply Faster" may work for marketing but the bikes are so simple they lack basic features that triathletes want and need. I hate to say it but my next bike will probably not be a Cervelo.

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The shame of it is that I love everything else about the bike. I'm on a P3 with Di2, it's light, stable, and is a joy to ride compared to other ti bikes I've been on. But whenever a long race approaches I have to stress about storage. I'm not someone who is happy bolting $200 worth of parts I have to assemble myself behind my seat.

I hate it too. I run an XLAB Delta 400 and the MultiStrike tube/co2 holder behind the saddle and I put stuff in the bento box but I wish it was just in a draft box behind the seat tube and I didn't have to figure out some solution to it. Draft boxes are not going away and are the new standard on bike design. A Felt IA gives you a lot more for the money than a P2 ever will. Or a Shiv or Speed Concept or QR....

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What the hell are all of you carrying around with more storage than my old touring bike?

The p2 / p3 has top tube bento mounts. Hide a tube / levers / CO2 under the seat and that's all I would ever need in a race, along with a BTA bottle and 1 or 2 bottles behind the seat. If I'm feeling especially pack mule-ish then an aero bottle could go in the main triangle.

To me, the draft box thingies are aero fairings that happen to double as storage, but they aren't necessary for effective storage.

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Try doing that on an old P2. The seatpost makes it really hard to get a tube in there. I gave up on that idea.

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Nice design, I like it.

Any reason that the bottom of the storage unit is flat (vs the bottom curving to mostly match the rear wheel curve) ?

Also, what material is your prototype, ABS, PLA, Nylon, other ?

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Well, your last sentence answered your question dude.

I've never done it on an "old" P2 (if you mean the original carbon P2), but given that you are talking about the lack of storage on the New P2, I'm not sure of the relevance.

I've never had an issue getting a tube in there somewhere, especially not if my x-lab BTS system is installed.

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Have you seen in person the draft boxes and what they can store?

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yes.

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It's an elegant solution to a real problem. Why would you want to hide things under your seat, tape them to saddle rails, etc. when there are better options on the market?

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Go ahead and hop off your high horse dude, for IMLP last year i had a bta bottle, bento and single bottle cage zip tied to my seat with the flat repair kit attached that with 2 XLab straps. Walking the transition area it was pretty minimal.
I'm looking for something better and more secure, more easily removed & re-installed between races and training.

Second, I'm not a fan of the gels on offer on IMLP course having thrown up twice on the run last year, and am trying to get as many Huma gels and picky bars on my bike as I can for a 5.5 hour ride. There's not a bento out there that can accommodate that. If I decide to run my tubular 808's then we're talking a spare tire, or at least a can of CaffeLatex.

Having spent $4K, I'd like a better option than zip tying things to my seat.I'd like a cleaner more secure set up than the one I proudly cobbled together. like the ones that come STANDARD from other brands that don't lead the Kona bike count.

Only on Slowtwitch do people think homemade solutions are better than a properly designed piece of a bike. Yeah I spent $4000 on my bike but it has duck tape and zip ties! It's better!

Seriously? Companies should not get a free pass for not figuring out how to make bikes work for triathletes. Cervelo admitted in a P5-X design video their engineers had never been to a triathlon before designing the P5-X. That's a huge problem when your engineers don't understand their target market.

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Wow, really? Got a link to that video ?

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You guys are saying that not having it is a dealbreaker, i.e. you wouldn't consider a bike without all of this extra storage. Like this is a REALLY IMPORTANT THING. I don't think it is all that big of a deal. If its an option, great, but there are about 50 things that are higher on the priority list.

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I have been considering designing a mount for a draft box similar to this but instead of going around the seat post it would replace the seat post clamp piece on my P3C. I would 3D print a few to confirm shape and then order it in aluminum from a CNC shop.

Am I really? Did I not say that I love everything else about the P3?

The harsh reality is that a big part of Ironman racing is nutrition and making sure you can fix a bike mishap like a flat. These are not ancillary, random concerns, they cut to the core of success in IM. So yes, not being set up to run strong off the bike due to a lack of the right nutrition, or not running at all b/c I couldn’t carry a spare tubular is a deal breaker. Cervelo trails the other big brands in this regard.

Why be on this thread if you don’t share the concern?

https://www.youtube.com/...amp;feature=youtu.be

My bad! They said most of their engineers had never been to an Ironman event.

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Name those 50 things BTW, I’m really curious.

Sticking it behind the saddle seem's to offer the best opportunity to make it aero-positive.

For short course, something like a tri-rig beta with an x-lab aero pouch attached (but without the need for a bottle cage, so you've got a pretty decent sized bag).

Long course, as above but mounting a mini-bag on the middle of the beta (with a bottle cage on each side)

P2


vs



Cables all over the place on the P2 and no storage vs the clean looking Felt...

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Yeah, I'm a little surprised nobody's done this yet. There are plenty of triathlon/tt saddles that have standard or optional rear bottle cage fixing points, as well as aftermarket solutions (like the beta) for saddles that don't come that way from the factory. I don't need a rear bottle for short course, but I'd sure like to be able to put a flat kit back there in some sort of case, hard- or soft-sided.

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Sounds like you guys are re-inventing this thing called a "saddle bag" ;-)

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I've considered drilling holes in an old saddle bag so I could mount it on the beta.

I just don't like it hanging on the back of a seatpost.

I want one!!!

P5 58cm

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I was limited by the bounding box of the printer. I've since figured out that I can print the part at an angle and therefore can have the bottom match the wheel contour.

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Getting an aluminum box CNCd cannot be cheap? What would be the cost?

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Looks great, what will be the material for the final print ?

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Very cool! Bravo sir.

No I mean I would just make bosses to mount a stock box from another manufacturer

edit: spelling

This is great idea for the P5. But unfortunately it won't work for the n.P2 or n.P3 ... as they have a completely different seat clamp mechs.

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Would you be open to sharing the CAD file?

Perhaps Damon could chime in on the prospects of placing a frame boss under the seat clamp.

I was also waiting on a solution, if nothing happens I will dust off my SolidWork's chops and take a shot at it myself and share the code. I think things like this are best to be solved by an open source approach via a forum like ST.

I have no issues for folks not wanted to go this route and want some return on their work, I just think a community effort will generate the best overall solution. There are a lot of creative folks out there with these bikes;)

any news on this front? Sorry to dig this up! :D

I guess no need to be sorry - the P-Series is too popular and everyone potentially has interest in such a solution. I guess this topic will pop up regularly in the future =)

I was planning on ordering the drag2zero box they are making for the scott plasma 5 next week- does anyone have experience with how that fits on Cervelo P5? I trust ill have to do lots of work with a Dremel and/or Resin to make it fit well, but maybe that's a start.

Love the idea. Got me thinking...why not take an off-the-shelf storage solution (for example the Felt IA BTSpac) and then 3D print the custom mount. Coincidentally before I saw your photo was looking at how to do so on my Giant Trinity Advanced Pro. A 3D bracket with an upper attachment around the seat post, a body with two bosses to attach the BTSpac and a lower attachment that zipties around the rear stays.

Hi ktm520

I've posted the 3d stl file for my 54cm Cervelo P5 on cgtrader, https://www.cgtrader.com/...-p5-rear-storage-box. You can purchase the stl file for $30.

Yann

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Hi

Anyone have made a modell for the triangel on the P2/P3?

I might be able to produce them at a resonable Cost.

Very slick design. Perhaps in the future you could figure out a way to integrate a tail light into the box!

Nice! Will it work for a 51cm P5?

I think you'll want to reply to yannb above me.

I am interested too. I have access to 3d printers. Would love on for my 2015 NP3. One question - how do I adjust the dimensions of the printed object based on the frame size?

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Next races on the schedule: none at the moment

Yann, do you think it would the same size for a 56 frame?

Unlikely, the height from the top of the rear wheel to the the seat clamp is going to be greater.

Take a piece of cardboard or manila folder and place it against the side of the trailing edge of the bike, trace the contour (blue lines as shown on the attached image), then place a ruler on the sketch and as accurately as you can, draw a 3 inch line next to it, I can use that for reference. Scan the drawing and post it in your response to me.

yann

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Per the above - does it work for a 51cm P5?

Not likely since the distance between wheel and top of seat tube clamp is smaller than the 54. I am willing to update the design for the different size frames if you are willing to follow the steps I've outlined above for different sized frames.

yann

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Cool, I have a 58cm so I may take you up on your offer. I did start to work on a boss mounted option as well.

Thanks.

That might be tough to print, that's an extra 1.57" of height. Don't know of any printers that are inexpensive that could print at that height.

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Sent you a PM

I have boxes now available for the P5 in 51, 54, 56 and 58. They can be ordered on my website: http://www.custombikexcessories.com/products-1. There is about a 2 week lead time from the time you place the order and the time I ship it out to you. I am dependent on shapeways printing service to print the boxes for me. Cost is $225 which includes shipping both within the US and international. I've sold just over 30 since I started taking orders mid December.

I'm now working on a above bottom bracket box for the P5. Video of test fit of 3d printed box on my p5 56cm here: https://www.youtube.com/watch?v=apPw6axkgec. This box is huge, you can transport your kitchen sink in it :-). Price will be $250-265. I'm hoping to bring the cost down by simplifying it some, will see. I'll be making a similar box for the P3 next.

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I would definitely be interested in this, I assume it would fit on a P2 all the same since they're essentially the same?

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The P5 box will not fit on the p2/p3. The triangle is different enough that it’s not a one size fits all.

Good news is that I was able to get measurements on a 51 and a 56 p3 today for the bottom bracket area. Also was able to get measurements off the back for a rear box. Progress made today.

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Any chance of a box for the 45cm/650c P3?

I'll be having the above BB box for a 51 p5 when it's ready. Any chance of a mailing list in case I miss the announcement on here?

Time for everyone to put their money where their mouth is. Before I continue down the path of designing a bottom bracket box for the p2/p3, I'm taking pre-orders for the box. A lot of you have expressed interest in the box and said they would buy it in heart beat. I've already put in a lot of work on it, this shows the level of commitment on your part in purchasing a box from me. Pre-order price is $190, full price will be $225. You can pre-order on my website: https://custombikexcessories.com/...s-1?olsPage=products. I'm looking for at least 5 people to pre-order. Note I will be doing the same for the P5 bb box, will setup the pre-order page later tonight.

It should take about 3-5 weeks before the boxes are ready to ship out. Will need to do some road testing of the box to validate the functionality.

If it does not pan out for some reason. I will refund your money.

yann

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Bonjour Yann,

You mention taking measurements for a potential P3 rear box. If it works out, I'd be interested in a size 54.

Merci et bon travail!
Elliot

Newer version of the P2\P3 I assume.

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I'm interested, willing to put up cash and willing to help out with sizing, but only if you plan to make a version for the 650c-wheeled 45cm P3.

Are you talking about the bb box or rear box? For the bb box I’m willing to do it if people are willing to put cash up front. I’m looking for a minimum of 7 orders for the P5 and same for the p2p3. I think the rear box on the p2/p3 is not going to work due to the rear brake being in the way.

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P3 and BB box. You're correct: the P2/P3 have a rear brake and can't use a rear-mounted box like the P5.

PM sent, thanks for your willingness to work on this.

First functional prototype of the bottom bracket box for the P5 printed this morning. Fits like a glove on my P5.
See video below


Also been working on the box for the P2/P3. See digital prototype here;


Debating between the magnets used on the P5 bb box and using a hinge on the P2/P3 bb box. Both boxes would end up with the same type of lid attachment.

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This is my work:
- 1 Torhans Vr System cutted to right size.
- 2 PVC pieces & nautical putty to shape the bottom.


[inline IMG_20181221_211358.jpg]

Looks good. Hinges have a nasty habit of breaking, I would prefer magnets, so long as they are strong enough. Just like the Tri-rig brake covers, these use magnets and I have never had one fall off yet.

This is exactly what I did to mine and I even sent pics to Torhans asked if they can produce something like this, but answer was no. They did give me a compliment though.
IMO, it looks ugly. I like 3D printed version the guy is currently working on.
Top section is parallel to the ground and I like it better that way.

Thanks for the compliment on my bb box design. I just did a 20 mile road test at lunch on my P5, hitting potholes on purpose to test the lid/box attachment and noise.
https://www.strava.com/activities/2128944014

It was perfect, it actually felt fast too, I'm at my lowest fitness in a very longtime right now, I didn't PR, but average speed was 19.9mph. I looked down on it a few times and thought that actually looks really cool from the top.




I'm almost ready to call it done. One small tweak to make so the lid side and box side are flush with each other. Will print a fixed tweaked version tonight. Unfortunately, it looks like rain for the next few days, so I wont be able to road test it on a longer ride till next week.

Going to test fit the p2/p3 box this evening at my local bike shop. Fingers crossed.

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Really well done on this P5 model as well as the Felt IA rear box on your website. I went down that same route (mounting to the seatpost) myself, but bolted through the middle of the seat post on the Felt rather than going all the way around the front.Your solution looks great.

Are you having these printed industrially by Shapeways or something? They look nicer than average. Despite having a Lulzbot Taz 6, and adequate design skills, you're probably going to be receiving some of my money :-)

Thank you for the great compliments. Yes, I use shapeways for the printing, using versatile plastic, which is SLS printed, which gives it a very clean/sharp look. I looked into other service bureaus, but none have had the quality I get from shapeways or at a reasonable price. I have both a taz5 and prusa mk3 and have tried to print production quality on them but the boxes would take over 20 hours to print and reliability of prints is just not there. Looked into a markforged printer but print time would be over a day and half. Stuck with my printers for prototyping.

Will look for your order. :-)

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Is your P5 setup test fit on a 56cm?

Yes, I have a 56.

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Yesterday, custom bike xcessories reached 200 Instagram followers. In honor of that milestone, I am offering $20 off any box I offer on my website www.custombikexcessories.com with coupon code instagram200. First 10 customers to order get the deal.

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Hi, new to the forum and to 3D print. I'd like to try my hand at making a aero bottle for my P5, any tips places to start? What type of printer do you have and what materials did you use?
Thanks

PETG is food safe (I think?)

Probably first place to start is picking a material you’d want to put in your mouth :)

Printer - more expensive will produce better prints. So kind of how much do you want to spend.

Was going to use food grade silicon insert for the bottle. Have been wondering about the best printer for this type of projects. Currently looking at Flashforge printer using NylonX.

Hey yann, any plans for a box for size 48 frame?

Is the P2 box only for the new version or will it fit pre-2014 models too?

As far as I know, P2 box is specifically for this design.

Which bike are you asking about, the P5 or P2/P3. I have a bottom bracket box for the P5 48. Trying to finish a rear box for the P5 48. But having issues getting the fit right as I don’t have physical access to a 48.

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You are correct, box is specific to the post 2014 p2/p3 model

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Hi Yann, sorry, didn't state the frame.

I was referring to the p2/p3 frame. Saw u had a reply tt something was in the works on Instagram some time back.

Unfortunately, without access to a 48 p2/p3 frame it’s hard to develop a box. Out of curiosity, where do you live?

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Hi Yann, am in singapore...saw a photo of one of the local guys p3 with the box and it looked awesome.

The p3 is my bike, its an perfect fit imo and quality is good too. Would really highly recommend it.

Fellow P-Series owners,

After years of no suitable bottom bracket storage system emerging for my P3 I decided to go ahead and make my own.

The CBE model above looks great, but I didn't want to lose the ability to carry a bottle - I like the Drag2Zero concept, but it's not available for the P3 and I felt it could be more aero and the entry mechanism less fiddly. This version fits my 56cm frame perfectly and I am currently working on a 58cm model to be available in the next month or so. If you have a different size frame I can easily adapt it for you by sharing a test strip to use on your bike to guide the measurements.

I comfortably carried an inner tube, CO2 and tyre lever in this and have tested it in a sprint and 70.3 Weymouth last year (pretty awful conditions, so a good test).

The unit is 3D printed and can be shipped on demand at https://timetrialweapons.com/ - the cost is largely that of the materials and printing - this is not mass produced!

Pics below and a video of installation here: https://youtu.be/IALfZK_LvGs

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Custom bike storage.

Well done! Any pics from the front of the bike showing the box??

Like this? Now available in both 56 & 58cm frames by the way, the others are in production.

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No looking straight at the front of the bike so you can see how much it sticks out from frame

Can you make one for size 51? I would definitely buy one. I think more people out there ride 51 & 54, not 56 & 58.

48, 51 & 54 are all underway with people who have reached out. If for some reason they stop getting in touch to assist I'll DM you to help get a 51cm model ready. 56 was done first as that's my size so was easiest to prototype on.

As for a front on photo, sure, here you go - it's the same width as the bottle so doesn't stick out further than that, hence why it's kinda hard to see it. But as you asked for it, here it is!

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Thanks. So bottle and box both seem to align with (and not stick out from) the frame?

Kienle has a similar storage box on his Scott Plasma(last pic). Tim O'Donnell and Frodeno use this bottle as well, so you can tell it's pretty aerodynamic. I like it better than a regular round bottle for sure.

Yes I’ve seen that but that’s a different frame. The bottle is aero, but also fairly poor, in my experience. I was just curious how the box and bottle line up on a Cervelo P bike.

My 2c, get the bottle whether or not you want to use our storage box - if you're going to have a bottle on your downtube anyway this seems by far the most aero option. As the post above suggests, it's widely used by many pros.

The box conforms to the bottle so if you're OK with how the bottle fits I don't see you having further issues as the width is the same for the storage box. We've even matched up the dimples with how the bottle is designed so it flows seamlessly together, but if aero is everything for you then scrap the bottle and storage all together.

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Rob
https://timetrialweapons.com/

Custom bike storage.

I have 2015 P2(white & blue) and this bottle is the most aerodynamic, compact and functional bottle you can buy.
Grip is good and it locks in really well, so you will never lose it.

It’s known for randomly squirting/poor nozzle....what’s your experience?

Not at all. I have two bottles and both of them are good. I have to squeeze and suck at the same time to drink, so no leak at all.
I love this bottle.

Nice work, very clean design. You did what I just didn't have time to work on. What software do use to design?

Yann

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I’m in for a 51 as well (for my gf). How does the flat kit lid stay closed?

Pics show all the details and I think design of the lid is pretty clever.

https://timetrialweapons.com/...-bracket-storage-box

There is also an assembly vid here: https://www.youtube.com/watch?v=IALfZK_LvGs

Where you can see the closing mechanism several times. I ride with it regularly on poor road surfaces, no issues thus far!

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https://timetrialweapons.com/

Custom bike storage.

Looks like an awesome product. Apologies if this has been asked already, but will this fit a 2016 P2 as well? My understanding was that the P2 and P3 frames are identical, but just want to confirm. I think I have a 58, but need to confirm that as well and will order as soon as I do.

Hi, yes my understanding is you're correct although we've not had anyone with a P2 order yet to be super sure which is why I didn't explicitly state that on the site.

If you do order and for some reason it doesn't fit obviously would be happy to do a return / refund.

Rob

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Custom bike storage.

OK, cool. I'll confirm my frame size, order tonight and will follow up on the fit.

hi, is the file still available for purchase ? i tried the link and it didn't work

Not sure what link you are referring to. I don't sell the files for any of my products. I only sell the boxes themselves. What bike and size are you looking for?

Yann

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Saw this link and tried clicking it :)

Sorry I don’t sell the stl file any more. That was before I turned this into a side job for myself.

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Are you still producing the integrated storage box for the P3?

Your website is down...

Thanks

you can order the bottom bracket box here: https://custombikexcessories.com/...-bracket-storage-box
and or the rear box here: https://custombikexcessories.com/...2p3-rear-storage-box

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Radsport-Ibert also sells the combo storage box/aero bottle.

https://shop.radsport-ibert.de/en/aerotoolbox/cervelo/

Will there be options for bikes other than a 54 for the bottom bracket box?

I have a different size P series but I’d love to grab one of these storage boxes. I purchased the rear storage box after I helped you with sizing/measurements.

Just hoping this becomes available for other sized P series.

Thanks

What size is your frame and where are you located?

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Size 51 P-series in New York

Size 58 also in New York

Check out the bb box for the p2/p3
https://custombikexcessories.com/products/ols/products/pre-order-cervelo-p2p3-bottom-bracket-storage-box
use coupon code blackfriday2023 for $30 off your order

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Can you clarify who this was in response to?

Re-ping. Thanks

I don’t recall who i was replying to. What are you looking for?

Yann

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Post #152

You can order a box for the P Series 51 here: https://custombikexcessories.com/...V-P-SERIES-RR-BOX-51

I happen to have one in stock that was a return due to the customer ordering the wrong box for his bike. If you order it tonight, I can drop it in the mail tomorrow.

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The question was about the bottom bracket box. I already have your rear storage box (in fact that’s my bike in the picture you linked).

In post #152 was the exchange where I asked if it was possible to grab one in a 51 for the P series because you don’t have it listed in that size. Then you asked where I was located and I replied NY (as well as another poster).

Thanks

Got it. Unfortunately, designing a bb box requires that I have physical access to the bike to measure and test fit the box.

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Do you sell replacement lids for the behind the saddle storage box? Mine cracked pretty early on. Still functional but less than ideal.

Yes https://custombikexcessories.com/...R-BOX-CRV-PSERIES-51

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That’s a bummer. I remember last time you emailed me a printout/cutout for the rear storage box and I sent photos of the fit.

Any chance we can try something similar?

Unfortunately, designing a bottom bracket box is much more complex/time consuming than a rear storage box. Also, there has been very little demand if not none for bb boxes for the P series. That makes it hard to justify the time needed to design one.

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