Nylon Plastic Mountain Integrated Hollow BB91 Press Bearings Bottom Bracket for Crankset Bike Accessory

Mountain road bike BB91 bottom bracket, very good visual effects, comfortable for upgrade accessories. Integrated hollow

crankset pressing thread bottom bracket, eco-friendly and high quality material. Made of high quality

nylon plastic, sturdy, and service life. Condition: 100% Brand New Item Type: Bike Bottom Bracket Model: BB91 Material: Nylon Plastic + Bearing Optional Color: Red, Black Quantity: 1PCS Weight: Approx. 108g Inner Diameter: Approx.24*24mmCelsius0.94x0.94inch Suitable Frame: Approx. 68-73mmCelsius2.68-2.87inch