shoot up or shut up.
Join Date: Nov 2003
Location: colorado springs, co
Bikes: yes please.
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i think you'll be better off with the lx brakes.
i begrudingly HAD avid 6's on my cross bike. i also noticed how the back of the pads would hit my fork, but it was never bad enough that i couldn't get my wheel out. my 32's would barely clear, but the 38's i'm currently running would scrub the pads. it was never bad enough to where i couldn't get the wheel out though. it might be an issue of which fork you're running, in terms of how fat the legs are and where the canti bosses are located. i'm running a ritchey carbon fork. my wife used to have a soma doublecross with avid 4's. that fork allowed the brakes to open much wider for wheel removal.
all that said, i just installed an xt canti on the front of my cross bike, which has solved all of my braking issues, plus increased my braking power substantially. i could never get my avid's to work the way i wanted. if they weren't squealing, they were causing the fork to shudder under medium to hard braking, or they had no power. i was running black koolstop pads. the shuddering happened with my stock aluminum fork, as well as my current carbon one.
the xt has great power, great modulation, is silent, and doesn't shudder what-so-ever. i also set it up with a straddle cable, rather than a link wire, so i could experiment with the mechanial advantage. i'm currently running the straddle so it's at about 30 degrees.