ZTTO BB91 Bearing Bottom Bracket Screw Type 68/73 mm Bicycle Axis MTB Road Bike Bottom Bracket Waterproof CNC Alloy BB

Brand Name: ZTTO
Material: Aluminum/Alloy
Model Number: BB91
Use: Mountain Bikes
Process: CNC Precision Machining
Color: Red, Black
Suit for: Mountain Bike , Road Bike
Mounting Dimensions: 68mm-73mm
Features: Waterproof