What are some of the important measurements of bottom brackets, threads, width, brearing sizes etc.
So if i want to change my "mmm, sora" crankset on my giant, do i have to stick with Shimano??
i see on ebay brands like, Raceface, FSA, Sram etc what measurements need to match, (i know about crank length)
anyone know of a website with exploded views of the BB?