Cervelo P5 Triathlon Bike Unveiled Early…Sort Of

the seatpost clamp is more like the p2/p3 than the s5 (which was related to the p4 clamp design). the p2/p3 clamp was hassle-free, so it’s a plus in my book.
saddle clamp looks like Ritchey’s adjustable one, which is nice since it’s easy to use and parts are available anywhere, but requires different hardware for different rail dimensions.
overall, i think i like it

At least the brake levers are Magura. Right lever reads “MA____”.

Wow, can’t wait to watch Team Cervelo/Garmin on this bike for the TT at TdF.

Heres the front brake without the fairing courtesy of weight weenies: http://i154.photobucket.com/albums/s269/Tillquist/MultiSport-Forum/cervelo_p5-002.jpg

oops, I guess the part about the screw was mentioned above.

Will is absolutely correct, STI levers are quite different from barend levers.

The standart setup on tribikes, (and tt bikes, which have become alarmingly focused on “aero” rather than “comfortable” and/or “fast”) is full aero bars with shifters for the full tuck, and brake levers spread further for climbing. This is the MAIN strongsuit of electronic shifting, that you can have shifters in both positions. This is also a very compelling reason one might run a hydraulic system for brakes, since you can have two brake lever positions without loosing power.

my original point in saying “they didn’t elimitate the sti/ergo levers” was because there was nothing to eliminate, sti/ergo type levers are not standard on this type of set-up.

Gillis, what I think Will is getting at is that with this set up they have removed one of the major functional gains of shimano di2, which was the addition of an sti shifter on the base bar so you could shift from both riding positions. Sti, just stands for ‘Shimano Total Integration’ ie; a combined shift brake lever, it has nothing to do with shape. I would have to agree with him, in that I don’t think the trade off of a hydraulic brake is worth losing the ability of being able to shift in both riding positions with ease especially in a hilly TT course where you may even end up needing to shift out of the saddle.

gillis

having shifters out on the base bar is a huge advantage. anytime you are up out of the saddle and have to shift with a bar end shifter only set up, you have to sit back down, shift, then resume standing again. with base bar shifters you never have to break your rhythm. that is the huge advantage in terms of rider performance. the rider can maintain their feel while standing.

i think hydraulic brakes are more of an option for a select few than electric shifting. as of now this is the only hydraulic brake system available. these hydraulic brakes take away any choice a consumer has. at least with electric shifters, if you dont like them you can change to another system. so only the select few who buy this bike will get these brakes.

We need to clear up what “STI” means, because Will and Peter aren’t using the Shimano term correctly which is leading to some confusion.

Shimano coined the term to describe their drop bar integrated shift/brake levers. While the Di2 basebar brakes also have shift buttons in them, and probably could fall under the “STI” moniker, Shimano refers to them as brake/shift levers. While they are NEAR the same location, the brake lever is not a shifter, so Shimano doesn’t refer to them as STI.

STI is referring to a brake lever that also shifts. The Di2 brake lever does not shift, though it IS right next to your shifters.

Brandon,

Thank you for kindly clearing that up. I just got very frustrated reading will’s responses. You can still have shifting in both positions with Di2, no matter what kind of brake lever you use. Quite easily actually. Brakes are independent of shifters.

Will:

Sorry, but you are confused. The Shimano Di2 brake/shift levers that mount to a TT basebar, are NOT STI. I realize that as a one-piece unit, they do SHIFT AND BRAKE, but, they DO NOT use the brake lever to shift. Hence the reason they are NOT STI. STI refers to a brake lever that also shifts, but that is NOT how Di2 basebar levers work. The shift buttons on the Di2 basebar brakes are NOT part of the lever.

I understand what you are saying, by using the Magura brake you no longer get the shifters near your brakes. But, you keep using the term STI to describe the Di2 brake levers, and that is NOT a term Shimano uses for that part AFAIK. Which is leading to confusion.

When running an entirely Di2 TT/Tri bike, you do NOT have any STI levers on there. By removing the Shimano brake/Di2 shifters you lose the functionality of shifters on your basebars, but you have not removed any STI parts because STI parts were never on your Di2-equipped TT/tri bike to begin with.

To summarize: if you are using the Di2 shift/brake levers on your basebar you CAN shift from there, but you still are not using STI shifters. You are misusing the STI term.

Thank you Brandon, I’m glad I wasn’t the only one thinking that. But in Will’s defense (for the moment) the Di2 basebar shifters are integrated into the mount of the brake levers and no other option is available for that location.

To be clear, I checked the Shimano (N. America) website. While the use of Sti is indirect, I found it only being used when concerning mechanical levers. Electronic levers are referred to as St Di2.

And frankly Will, I’m not inclined to agree that having that extra shifter position is better, that is unless everyone had it. This isn’t Formula 1 and the team with the best traction control system shouldn’t have the advantage. As impossible and idyllic as it may sound, I would like to see someone win based on strength, mental and physical, not mechanical.

Brandon, I didn’t say they weren’t awesome, hardly, I’m sure they are. As I ended with earlier, I’d rather see an even playing field from a mechanical standpoint. In fact this is probably a safer system that all should have. Given this is a small point that only effects a few in only a handful of events in the season.

Gillis:

There never will be an even playing field? How would you draw that line? Everyone ride a steel round-tubed bike with 32h box-section wheels? Unfortunately or not, TT bikes are all about technology and buying the newest go-fast goodies. But, luckily you still need to pedal the bike!

Brandon, I did say it was impossible and idyllic to think that. But yes, as much as I enjoy the tech side of bikes, I don’t care what the pros ride and would be fine if they all rode steel frames and traditional wheels.AN IROC type environment would be fine by me. My context has never been about “buying the newest go-fast goodies”.

dgaddis: yeah I know, it was a bunch of interweb miscommunication. 5 minutes face to face and it would’ve been settled.

i know this only shows a road lever but dont be nit picky here is the best definition of sti i could find

http://en.wikipedia.org/wiki/Shimano_Total_Integration

well, looks like the RT88 do not work with Di2, so no shifting on the handlebar, only in aero position. bummer. BUT it’s an easy DIY upgrade 😉