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Use Sram/Truvativ or Shimano Hollowtech-II cranks in your BB30 frame
Shims are based on industry standard BB30 bottom bracket shells
Easy to install and machined for exact fit
Shims press fit directly into BB30 bearings (6806)
You will need the 6806 bearings already installed into the BB30 shell to start this conversion
Removal is the opposite of installation.
You may need to gently tap them out from the opposite side