Cannondale Si Crank Lock Ring- KP021

Original alloy Cannondale lockring used to fasten the spider to the crankarm on Hollowgram cranks.

Compatible with all Cannondale BB30 Hollowgram cranks, and was redesigned to fit Evo's press-fit bottom bracket. If you have an Evo you need this lockring, because the old one does not fit.