Park Tool BBT-9 Bottom Bracket Tool - Hollow Tech MTB constructed in aluminum but with

constructed in aluminum but with a coating that enhances its finish and feel

Don’t add saddle sores to the list of elements you’re battling while riding your bike

Series: Ultegra R8100

Volume: Approximately

Soothes already chafed or irritated skin

Park Tool BBT-9 Bottom Bracket Tool - Hollow Tech MTB constructed in aluminum but withThe BBT 9 is used to remove and install external bearing crankset bottom brackets. One end of the BBT 9 securely engages the 16 notches of bottom bracket cups. The other end of the tool engages the 8 internal splines of the crank arm adjustment cap on Shimano Hollowtech II systems. The BBT 9 fits cups and lockrings with 16 external notches and an outside diameter of approximately 44mm. Specifications Fits 16 notch tool fittings with a major diameter