Park Tools BBT-5 Campagnolo Cartridge Bottom Bracket tool
Campagnolo® cartridges need their own version of bottom bracket tools. This small tool looks like a freewheel remover, but has a slightly different shape. The BBT-5 fits Record®, Chorus®, and Athena® bottom bracket cartridges. It also fits all rear Campagnolo® cassette hub lockrings.
