Wheels Manufacturing BBright and BB30A to Shimano 24 mm Crank Shims

These shims press into your existing BB30 bearings in your BBright or BB30A (73mm) frame, to use a Shimano Hollowtech II Chainset

For Road: Dura Ace, Ultegra, 105, Tiagra, Sora

For MTB: XTR, XT, SLX, Deore

From the Manufacturer:

Run Shimano HollowTech-II cranks in your BBright or BB30A frame

• Shims are based on industry standard BBright bottom bracket shells
• Easy to install and machined for exact fit
• Shims press fit directly into BBright bearings
• You will need the BBright or BB30 bearings already installed into the BBright or BB30A shell to start this conversion
• Removal is the opposite of installation
• You may need to gently tap them out from the opposite side