Cartridge bottom bracket remover for the removal and fitment of cartidge style bottom brackets from shimano the hardened cartridge bb remover will ensure that the tool remains secure whilst performing the task with ease an essential for any home mechanic compatible with shimano fsa and raceface cartidge bottom brackets hardened material 3 year warranty about ribble cycles founded in 1887 ribble cycles continues to be at the very heart of british cycling from award winning bikes to innovati