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@Buildhigh
left crank arm has recently started coming loose, have took them off and put back on a few times. they are suginos 75 square tapers, using campag iso centaur bb (old style version). i dont wanna have to tighten too much cos thinking the taper might deform and bottom out. but if that happens then thinking i could use a jis equivalent width to remedy...? thinking also to put some sort of shim between the crank and bb axle that would provide more contact/tighter fit?