I have a 2013 Cervelo P3, HED Jets with 23mm GP 3000s’. I notice occasional rub on the rear seat stay. It seems like the wheel can’t get lined up in back. If it is perfectly lined up on the superior portion (near the seat stays), I nearly get rub on the left chain stay. If I line the wheel up perfectly between the chain stays, I nearly get rub on the left seat stay. The “nearly rub” turns into rub if I stand up on climbs. I know you shouldn’t stand up in a Tri to save your legs for the run, but sometimes you need to do it!
Probably a big-time idiot question, but are you sure the wheel is true and dished? Yes, P3s have had some issues with rear wheels, but I thought that was mostly with certain discs. Haven’t heard it being an issue with Jets.
Yup, I had a tune-up prior to IM Madison and I asked them to true the rear wheel since I noticed the rub and thought it might be out of true. Because the wheel often sits slightly off center in back it almost appeared out of true when spun. My mechanic put the wheel on the truing stand and said it was “more true than the day I bought it”
I should have had them look at the rear wheel position then, but I didn’t.
Some truing stands have their own gauge that tells them when the wheel is correctly centered, but when you take it off that gauge and stick it in your frame, sometimes it will be off center with your frame. Get the wheel re-dished on the bike frame you will be using.
Alot of bikes tend to have the rear wheel come off center toward the left chainstay over time.
Be sure to verify that the wheel is tried and properly dished, where your wheel sits in the dropouts, they may have screws in each of them, be 100% certain that the wheel sits in the dropouts perfectly, also if it only happens when your torquing putting down the power that your rear quick release is nice and snug…do not overtighten the quick release as you’ll cause some serious damage…
Are the set scores in the dropouts even? I had an issue with rubbing in the spring but couldn’t figure out why. Thought it was my trainer because it spun right but when I started riding it started rubbing. After trying out different tires, different clamping, then realizing it was still like that on the road. Brought it to tech support day before big race, after a freakout moment, and they saw the screws weren’t even so when I put pressure down the hub slipped back to where the screws allowed it to. Not sure if the P3 has the screws or not but if they do check that out maybe.
Check set screws in the horizontal dropouts. I had this issue and set screws were stripped and bent from getting caught in the skewer springs. Once they were stripped I couldn’t get them out. Amazing how a $1 screw ruined my frame. Cervelo Wouldn’t warranty it so I poxied those fckrs true. They’re never moving now and voila, no stress about wheel rubbing.
Are the set screws in the dropouts even? I had an issue with rubbing in the spring but couldn’t figure out why. Thought it was my trainer because it spun right but when I started riding it started rubbing. After trying out different tires, different clamping, then realizing it was still like that on the road. Brought it to tech support day before big race, after a freakout moment, and they saw the screws weren’t even so when I put pressure down the hub slipped back to where the screws allowed it to. Not sure if the P3 has the screws or not but if they do check that out maybe.
I absolutely had this issue. Yes, the P3 has the set screws in the horizontal dropouts. Best way to fix it (if this is OP’s problem). Screw them both in all the way, and then screw them out 1/2 rotation at a time (alternating sides).
I drove myself crazy trying to figure out what was wrong! Thought it was wheel, trainer, tire but never thought to look at the screws! I need to double check them again just to be positive. Good luck to the OP.
Same bike same problem. Drove myself and LBS nuts. LBS finally determined frame dropouts were misaligned from factory. New frame under Cervelo warranty one week later. May want to look into frame alignment.
You can put the wheel in opposite (so the cassette is on the wrong side). If the rubbing is on the same side of the frame, that means the issue is with the frame or dropouts. If the rubbing occurs on the other side, the problem is with the wheel.
You can put the wheel in opposite (so the cassette is on the wrong side). If the rubbing is on the same side of the frame, that means the issue is with the frame or dropouts. If the rubbing occurs on the other side, the problem is with the wheel.
I had a 2013 P3 and had frame alignment issues which caused my zipp super 9 CC not to sit center regardless of how the set screws were set w your exact issues. (if it centered on seat stays, it rubs the chain stay and vice versa). Called cervelo and got a warranty after taking it to LBS and having them take pics and etc. My disc originally fit in my 2011 P3 but was issued a warranty replacement due to BB delaminating. As frustrating as it was I ended up w a 2015 P3 and they have much larger width in the chain and seat stays.
You can put the wheel in opposite (so the cassette is on the wrong side). If the rubbing is on the same side of the frame, that means the issue is with the frame or dropouts. If the rubbing occurs on the other side, the problem is with the wheel.
Great advice! I’m going to try that tonight!
The rubbing remained on the same side. Thanks for bringing this test to my attention. If I am super precise with my position in back, the bike is rideable from seated position without rub. Any slight out of the saddle power and rub occurs. Should I let my LBS decide if it’s worth sending in? I don’t want to strip the frame, pay to send it in, only for them to send it back saying its within normal limits etc…
I had similar issues with a Neil Pryde Bayamo that also has horizontal dropouts and the set screws. So check those, but in the end the fix for me was to use some better QR skewers. I would set it all up in the workstand and everything would be fine, but head out on the road and when I stood to climb I’d get rubbing going on. It was only with a particular wheel and I finally solved it by replacing the QR skewer with a better quality one.