Originally Posted by fixedpip
truvativ power spline BBs are not ISIS, they're a different type of splined BB (because the world is not confusing enough).
ISIS has 10 splines, Powersplines have 12? (Could be wrong - this out of my jumble of a memory)
Someone deserves to be poked in the eye for inventing yet another proprietary BB design. Theres only one Powerspline BB on the market, made by Truvativ of course and its cheap and seeminly unreliable.
you are correct sir here is a cookie however truvativ also makes isis compatible cranks