The S is Silent said:Campy anyone? FD trim lets you cross-chain to your heart's content with no rub.
Get right in there.
I'm curious...why all the funky chain ring sizes? What is wrong with the 53/39 or 50/36 that come standard on most cranks? Smaller rings give wider gear ratios? IMO, the only place a 52 chainring belongs is on a junior's bike.
Campy Record, here (10 spd). Generally trimming the FD doesn't prevent chain rub in all cases. I can shift gears, even on both chainrings. It's easy, and requires about as much energy as relaxing to fart. It can't be all bad, anyway. I mean, heck, thems pro riders and stuff....you don't see them staying in one chainring to save the time and complications of shifting to the other. It's almost like they know that shifting is easy.