Wheels Manufacturing BB30/PF30 Universal Adapter for Shimano Cranks Introducing our new system for adapting Shimano and similar 24mm standard cranks to new BB30 and Pressfit30 standard frames The BBMULTI-SHIM kit adapts Shimano or similar 24mm cranks to virtually any BB30/PF30 frame This kit includes 2 adapter shims and a 14-piece assortment of left and right side spacers Machined engineering-grade Delrin Made in the USA