Wolf Tooth T47 External Bottom Bracket - T47 External 68/73mm For 30mm Spindle Raw Silver CheckoutSpec= 10 x 54.0 Color Black Ring Position/Type Inner

Color Black Ring Position/Type Inner Tooth Count 36 Drivetrain Speeds 9 Chainring BCD 104 Defined Color Black

Enables you to attach a Bicycle Trailer Kit to bicycles with an internal hub

metal arms

increasing the average thickness of the soft rubber for improved grip

6 upper/lower upper stack 11mm color turquoise weight 36g

Wolf Tooth T47 External Bottom Bracket - T47 External 68/73mm For 30mm Spindle Raw Silver CheckoutSpec= 10 x 54.0 Color Black Ring Position/Type InnerWolf Tooth T47 External bottom Brackets are engineered to be smooth durable lightweight fast and user serviceable. Their ground up design features custom bearings seals bushings and cups which eliminate creaking and balance best in class weather sealing with optimized bearing radial compression alignment and preload for low drag. The Wolf Tooth Bottom Bracket bearings feature custom designed balls and races that are made from a hardened chrome bearing