Nice job. I agree that the S series bikes are ideal for this purpose. Not surprising I suppose as Cervelo has built in several key features (seatpost..) to facilitate the use for either role. One of the main reasons I bought an S5.
Are you going to leave yours as a tt set-up or switch back to roadie from time to time? I guess the cabling through the extensions/base is the deal-breaker?

Great looking bike! I've got a S2 and am thinking of doing the same thing.

Thanks! I'll switch back to roadie for most training and my weekly group ride. Surprisingly it only takes about 15-20 min to switch back and forth so its not as much of a hassle as I thought it was going to be.

So do you just keep the whole bar assembly intact and then switch the cables ? How did you get the lengths of the cables to work out? Are there other parts that are tough to complete?
Looks tricky to me but I'm coming from a very modest bike-mechanics skill set.

I would highly recommend it. I'd been waffling back and forth about whether to buy a tt bike but have not been disappointed. Actually (and yes better training has helped) my average speeds have been higher on the S2 than they were last year on my QR CD0.1

Yes I use the same stem and just swap out the bars. Each set have their own brake and shifter cables. Initially it took a bit of time getting the aero cockpit setup and I had the help of a friend who owns a LBS. I have the same average mechanic skills and I definitely could have set this up myself, just would have taken a lot longer :)

Thanks. I'd probably do it with the help of my local shop, at least the first few times. Really interesting to hear that switching like this is a realistic proposition. I was considering just mini-aerobars but might also look at the whole deal now. Its hard to tell by the photo but it looks like you're still in the rear hole on the seat tube. If so, have you tried the forward one and it didn't work? Or I guess that you're just comfortable where you are?

Here is mine from last year.



I have since bought a P2, so my S2 is back to full-time roadie configuration.


Agreed 100% that it is an excellent option for those who aren't ready to commit to a full tri bike.

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Chicago Cubs - 2016 WORLD SERIES Champions!!!!

"If ever the time should come, when vain and aspiring men shall possess the highest seats in government, our country will stand in need of its experienced patriots to prevent its ruin." - Samuel Adams

Glad to see there are others doing the same. It's amazing how good of a position you can achieve for a road bike geometry.

I noticed you are using the standard seatpost for your tri position. You may wanna consider the reversible SP to get a little more forward. That is what I used for my tri position. I kept the original SP with saddle on it for fast conversions to the road set-up.

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Chicago Cubs - 2016 WORLD SERIES Champions!!!!

"If ever the time should come, when vain and aspiring men shall possess the highest seats in government, our country will stand in need of its experienced patriots to prevent its ruin." - Samuel Adams

With the other seat post I'm too far forward. I'm on the tall side for a 58cm frame at 6' 4" and I just couldn't get comfortable more forward. The 60cm frame was just a bit too big. I usually sit right on the tip of my saddle so I get pretty far forward. Thanks for the advice though.

Well, I figured with that amount of SP showing, you were not on the shorter side!!

;-)

But wow...6'4" on a 58? You must be folded over like calzone!!

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Chicago Cubs - 2016 WORLD SERIES Champions!!!!

"If ever the time should come, when vain and aspiring men shall possess the highest seats in government, our country will stand in need of its experienced patriots to prevent its ruin." - Samuel Adams

You have to look at the saddle he is riding and understand how you ride that and it does not look that bad actually. Sort of reminds me of this ride. On the S5 the front hole is only 73 degrees which would be what the S2 would be with a single position seat post so if you are using that saddle pushed all the way forward, I am thinking that you can achieve a good position.

Yeah sounds crazy but works really well for me. Plus good flexibility helps you get nice and flat

What else did you change going from road to tri set up? did you need a shorter stem? do you think you would ride a larger size if you were to ride it exclusively with drop bars?

Just to be controversial, I have been doing the same thing for years now and I can not seem to make it work. It's ridable, I can race it, but I pay it later with back pain. If I wanted to really make it work I would have to go frankenbike all the way. If I had the money I would invest in a tri geometry right away.

N+1.

I use the same stem that came on it which is a 110mm length, didnt have toi change anything . I would still ride the same size frame even if it was just for road as I still have a very forward position. I got the idea from cancellara who rides a 56 when he should be on a 58. He said he likes the smaller frame so he can get more forward over the crank instead of being stretched out. Can't remember where I read that though. Not ideal for climbing but great for pounding the flats

That's interesting I've haven't been uncomfortable on it even on long rides. I do spend quite a bit of time dedicated to stretching so maybe it's just a bio mechanical difference. Do you have pictures of your setup?

No, but I can tell you that I have the reversible seat post and the seat (Cobb saddle) all the way forward. No spacers up front, leveled stem (100mm), HED flip lite (low profile).

I'm 5'10 and the frame is a 54. Good for road geometry, but as far as trying to convert it for tri I maxed it out. I always slide forward on my seat and want to go lower, and would not want any more reach. My back is not straight, but I don't think it is meant to be for me.

I'm 5'9"ish and also on a 54 and was able to achieve a great position on my S2 in tri configuration. Note that my seat is not all the way forward on its rails. Maybe try moving back a touch (I know.... heresy on ST) and getting more stretched out?


My stem was also a 120, -17* and it was slammed. No handling issues at all with a 120


disclaimer - not all riders of similar height can achieve similar positions. But the above worked for me.

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Chicago Cubs - 2016 WORLD SERIES Champions!!!!

"If ever the time should come, when vain and aspiring men shall possess the highest seats in government, our country will stand in need of its experienced patriots to prevent its ruin." - Samuel Adams

My point exactly. I thought I could make it work but no. If I move the seat backward then I need a shorter stem, 90 maybe and probably 80-->Frankenbike. plus my ass REALLY want to move forward.

Hi Baboonator,

Short stems with aero bars are actually okay in practice - your steering influence is normally many centimeters ahead of where it would be with drop bars. If ya need a shorty, ya need a shorty.

Cheers,

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Damon Rinard
Engineering Manager,
CSG Road Engineering Department
Cannondale & GT Bicycles
(ex-Cervelo, ex-Trek, ex-Velomax, ex-Kestrel)

@BMANX
My Hed Jet Disc doesn't fit in my S2?
It touches the left site of the frame.
So the S5 doesn't have this problem?

Thank you for the answer, didn't expect that.

Unfortunately, in practice, I found out that there is a huge drop in stability from a 100mm to a 90mm stem. It may be a function of my position, but that is how it is. I feel I maxed out the bike as far as TT position goes. If you want some visual cue, the only picture I have of me on the bike is in this thread (last post), and that's a 100mm stem.

http://forum.slowtwitch.com/...0baboonator;#3612361

I can't even fathom dealing with an 80mm.

That shouldn't worry you too much though, that just means that I will be looking for a TT bike sooner than later! I was hoping that my S2 (SLC actually) would be it. You don't have a P4 collecting dust somewhere don't you?

Edit: actually after thinking about it the stem I used with was a 110mm. I bought a 100mm but chose against it after notivcing the added stability. So yeah, no shorter stems for me on this bike.