That stem looks awesome! Quick note: you might want to clarify pricing. I think you lost the plot on the second sentence.

The saddle bag also looks awesome! Is that a mini beam wrench? 😍

Thanks

Pricing re written

Yes, that a mini torque wrench with a beam for 2-10 NM

Joshua

I take it the top of the stem is a mostly cosmetic piece to route the cables over the steerer tube? Btw you might want to include a link to your indiegogo. I haven't found it as of yet...

Those clip ons look really good. I am looking for a new set so I can get a bit more reach and a bit lower than the PD T2 set I currently have. What is the reach adjustment possibilities? Looks like a lot but doesn't say on the description.

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Twitter - Instagram

please take a look at campaign page. Prefer not to put all images, data here as I hope people will visit the campaign.

the spec does list the numbers

Joshua

Makes sense. Is this the link? https://www.indiegogo.com/...n-aerobars-bicycle#/

Just want to make sure everyone goes to the right page!

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Twitter - Instagram

Thanks, forgot the link.....

Yes, cover is cosmetic. Non structural. Bar Bore and stem base are all the structure so for set up you can ride cover off til you dial in fit, then cut the steerer. etc.

Sram ETAP blip box fits in 100 and 110 mm tested. Need to check 90 sample in the future to see if it fits.

ST. You have been asking for a way to hide ETAP and Di2 with access without using your bento boxes. Here is that product. Please do be a backer

Just for curiosity, how strong is the stem and clip on setup? Could you run it without a basebar, aero or die style?

I don't understand the question

We aren't releasing the bar bore version yet as it isnt up to my stiffness goals.

This launch is for our stem and a 31.8 clip on aerobar. So. Needs a bar to attach to.

Joshua

I really quite like this. A readily adjustable aerobar that’s neat and not silly money is what most (non) riders need.

Just checking: are the extensions 7/8” / 22.2mm?

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Developing aero, fit and other fun stuff at Red is Faster

Yes, Extension is 22.2. So any extension will work. I will only offer a 30 degree rise in the beginning in alloy and carbon

damn if you had a 70mm stem length option you would have my money.

Thats short.

Aerobar has alot of reach adjustments. U can't fit on my clip ons and 90 mm stem?

Stem ordered! Quick question: what is the steerer clamp height?

Thank you for your support.


33 mm of steerer above your headset is recommended for safety.

Joshua

I have never backed one of these before is but i am interested in this stem. Is there a place to pick length? I didn't see it or do you just send an email asking before you ship?

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2019 T-Rex Tri Series

Will get that info after campaign funds successfully

Thanks

Joshua

Nice work!
Can I use your new aerobars with a conventional stem that I already have?

thanks.

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Advanced Aero TopTube Storage for Road, Gravel, & Tri...ZeroSlip & Direct-mount, made in the USA.
DarkSpeedWorks.com.....Reviews.....Insta.....Facebook
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Thanks for making a longer stem. 1) It appears it would fit the low profile stem of the Felt IA10...is this correct? 2) What is the length of the extensions?

Yes its 31.8 clamp so any stem is fine

Should work on felt iaxx

I dont have access to one to check. Felt hasn't seen 3d to verify. But longer stem has 2 cable stopd so should be able to run inner cable to front brake.

I believe this fact is your strongest card to play, and would make it a cornerstone of my marketing message were I you.

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"They're made of latex, not nitroglycerin"

Count me in for at least two!

Does the old/first Di2 junction fits in there? The cable exits in both ways on em.

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-shoki

Any details on the aerobar risers? They are hinted at in the images, but not mentioned here or the crowdfunding site.

What's the stem angle?

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Strava

Yes, Di2 fits inside the cover

Yah

I will update video next week. My samples of spacers came after my video shoot. So sent to vidoegrapher to do a video of actual product stacked, etc,

The spacers are designed to tuck di2 icable n the back pushed in place.and a cable holder clip Part A of B should also work from jagwire allowing mechanical to be clipped in before going into stem keeping cables hidden from the wind from the front.

Will offer 5mm, 10 mm, 20 mm, 40 mm, 60 mm, 5 mm bridge.

0-80 mm total. However. each stack is 4 bolts. So thats my concern shipping weight right now.

Will discuss internally this weekend and see what options we have to include in shipping and at what price increase.

Waiting on final bolt pricing as well

Cheers

Joshua

Gary

It is a cornerstone for Tri bikes but I am also catering to the road market with this stem. Which is why I didn't design BTA mount into cover.

Road and tri market is heading to fully hidden cables. My patent helps keep this stem unique in that it is an open faced design with accessible cables at all times, easier for travel and assembly which should be an option I hope to sell OEM spec to road and tri brands.

Besides. we all hope Sram actually improves the blip box.

Extension length, Alloy 365 mm, carbon 384 mm

Could you show us a picture og how the cable runs go without the stem top cap? Interested to see if I can run mechanical on it...

Here you go , cover off

Stem angle is -10 degrees

Bummer I was about to pull the trigger today. I was hoping it would be -17 I wanted to switch this out with my current stem but with the -10 according to ttbike fit stem calculator it would raise my stack 12mm. If anything I would be trying to at least stay the same or lower. I am curious why the -10 for an aero stem? maybe I am wrong but I thought -17 on most tri bikes is what is most common. Did you try to find a middle ground for road and tri bike use?

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2019 T-Rex Tri Series

Mass market appeal

most common on road bikes is -6 to -10 or even positive rise for some. Tri bikes you sometimes find -17. But honestly not many stems are -17 on bikes as the average rider doesn't ride that agressively.

Had to choose an angle that would be best for both road and tri. And had to study what was on the market to compete against and those were PRO missile and 3T integra both at -10.

Sorry we were not able to meet your needs.
. if we fund, a different angle is definitely in the plans but Tri market is really small compared to road segway and I want to see this product on OEM spec for road bikes and tri bikes with fully hidden cables, while still allowing athletes the ability to travel with the bike with handlebar removal.

Also, biggest cost is the cover in tooling. So that is a limiter and reason for the high funding goal. It allows me to keep the unit pricing retail reasonable at 110 USD with lower unit cost but higher up front tooling costs. This also means opening more sizes and angles comes at a very high mold fee. So had to choose one that works well rounded for all.

If you need extremely low. The profile Ultimate Aeria(my direct competition) is I believe -22 degrees, so should help you reach your fit numbers.

Hope that explanation is clear. Thanks for your honesty

Thanks for the reply. Totally understandable. I hope this works out well for you. If you do offer other angles in the future I will definitely pick one up.

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2019 T-Rex Tri Series

I uploaded an install video of the aerobars

Shows how easy it is to set up and adjust.


https://vimeo.com/241989692

very nice.

Do you think one could run

One could run??' o don't understand

Is it possible to order without any extensions? I have a preferred setup that I would like to use with your clipon so don't need another set of extensions.

fyi the timeline makes it look like it won't be shipping till 2019 (eventhough it says elsewhere on the page that it will ship in 2018)

I love this stem. Am now a backer. Will be updating my set up this spring me thinks!

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NCCP certified Comp coach

Yes,
I will add that perk option in. Unit price wont be much different as the cost of extensions is lowest price of the design.

Timeline shows 2018. Can I ask where the date 2019 is coming from?

Thanks

Joshua

From the timeline you posted, it seems that the starting point in October is October 2018 and shows the products being shipped in 2019.

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@floathammerholdon | @partners_in_tri

I see now
Will update later.

Tks

I was hopeful this might be a future option for a Felt IAxx stem replacement but alas, you recommend 33mm of steerer to clamp to and if I'm not mistaken the Felt IAxx steerers have been cut to 29mm for their stock stem.

So, either I have that dimension wrong or you've already ruled out most people's Felt IAxx as a candidate for this stem. A shame as it does look like it would have been a very interesting option.

29 mm is above headset top cap right?

Does that include the expander plugs height added in? most expander plugs are 2-3 mm added height.

I just remeasured and it should work but I don't have an IA xx available to me in Taiwan to check.

Kiley has a stem for review., I'll see if he can check locally. unsure if he can though as he has a build ready for it to use for testing.

I'm not looking to start a war here, but any aero comparison to Tririg's Alpha X? I'm running a stock cockpit on a 1st gen speed concept and I'm looking to upgrade for aero gains. I'm torn between a used Alpha X and your stem/aero bar set up with a 3rd party base bar.

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@floathammerholdon | @partners_in_tri

If someone in the Philadelphia area wants to stop by with an IAx to try if it works, feel free to PM me. Can the effective IAx steerer be increased with an ultra low duster cap, or by removal of the duster cap? I'm not too familiar with that stem/steerer junction

Sorry my post got cut off.

Do you think it can run mechanical shifter cables through the stem for a bike that still has downtube cable entry?

Ill check with a frame locally but don't see why not. If your in no stack on aeerobar you can run shifter s through. But if your putting stack shift cables might not run smoothly. But thats true for any mechanical shifting bike and any stem on market.

I would zip tie the 3 cables together and zip tie that to one around a spacer and that will help keep cables in place behind stem. The culprit tri bike in video has downtube brake cable run that way. But ot was built up sram etap shifters with the blip box under the stem cover. So i haven't tested shifting cables yet into downtube.

Zipp vuka Aero has a 5 cm width at stem attachment point. And a touch over 2 cm from the end of the stem to the inside of center cap on basebar.

What are the chances of this stem being made if the funding isn't reached? Cause there's a long way to go in 9 days...

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Strava

We are still looking at other options. However, we will inform and offer best pricing to those who supported our campaign. So I would advise backing regardless. If we do not fund our goal, nothing lost. Then you will be on our list of people to contact when we can offer the stem.

We are trying to do full cnc versions, different covers with or without di2 inside, etc in full cnc to bring down tooling costs but that will raise unit pricing.. currently checking if we can get di2 in the smaller size in stem body cavity.

Also, waiting on full cnc quotes and a supplier who has shown interest to do lower quantities. Then, need to make stems/samples and EN test again, etc....

So, we are doing what we can, but still, NEED orders to justify the cost and show demand for the product.

Any updates on the stem and bars?

If your design is solid (ie it works as well as it looks) and your prices are near what you project, then I think you will have plenty of sales.

Agreed, I'd buy.

Sorry

Some hiccups in samples.

Still working on it. Sorry

I've been meaning to post a review of the saddle bag... also been meaning to build up the bike 🙄 Alas, I had to go out of town this weekend for work again. Anyways I can say that your saddle bag is basically a complete portable tool kit. There's very little that you can't fix on the bike with that tool kit and it's configuration is a perfect blend of size, organization, and usability. That's the key thing: you can actually use that kit on the side of the road without dumping bits out onto the road and then having to chase tools in the grass etc. It's a proper tool kit.

Also, the mini beam wrench is the greatest thing since sliced bread. I love that thing.