New answers tagged sram
If there is a strong resistance. My guess is that you have a limit screw preventing the fron derailleur shifting to bigger chainring. Check limit screw Check if front derailleur can move freely (unscrew both limit screw and pull the cable to see if front derailleur move). Sometimes front derailleur corrodes to the point that it cannot be moved.
BB90 accepts the same axle as a standard outboard BB - 24mm crank axle. I think there are two options.. Stages make a power meter that they list as compatible with Force and Rival groupsets. For a BB90, I think it would be the GXP option you're looking for. I would compare the axle/crank spline before buying it though as I'm unsure what the CX1 spline ...
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