Park Tool BBT-9 Bottom Bracket Tool - Hollow Tech PDL The design of each wheel

The design of each wheel component enables maximum aerodynamic penetration

Featuring Schwalbe’s proven ADDIX compound

Adapter’s material: aerospace aluminium alloy

This silica may cause minor cosmetic blemishing

Destroying an expensive tire on a weekly basis is not only unaffordable

Park Tool BBT-9 Bottom Bracket Tool - Hollow Tech PDL The design of each wheelThe 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