An elegant lightweight & trouble-free solution for adapting SRAM cranks to new Pressfit 30-standard frames Simply tap the adapters into the 6806 bearing in the BB shell install the spindle & cranks. Use our BB30 spacer kit to adjust your chainline or take up any side-to-side movement in your cranks. (NOTE: The stock bottom bracket seals must be removed before installing the Pressfit 30 adapter) Run 22/24 mm cranks in your SRAM Press Fit 30 frame Shims are based on industry standard PF30 bottom bracket shells Easy to install & machined for exact fit Shims press fit directly into PF30 bearings (6806) You will need the 6806 bearings already installed into the BB shell to start this conversion Removal is the opposite of installation 48 grams a pair