. For Shimano® / ISIS Drive® compatible cartridge BBs with 20-tooth in the ring
. Use with 1/2" air driver (#53R4) or ratchet wrench
. CNC engineered
․ Product Dimensions : 5.1 x 3.2 x 3.2cm
․ Weight : 0.130kg
․ Color : Black
․ Material : Cr-Mo Steel