Alloy Bike BB109 Ceramics Integrated Screw In Bearings Thread Bottom Bracket Accessory(Black )

machining manufacturing, with better performance and durability. Double waterproof, can also used in rainy day, more practical. Professional manufacturing, stable characteristics and high reliability. Condition: 100% Brand New Item Type: Bottom BracketBrand:  Model: BB109 Material:  Alloy + Ceramic Bearing  Optional Color: Black, Red  Quantity: 1PCS Weight: Approx. 108g Inner Diameter: Approx.  24mmCelsius0.94inch, 22*24mmCelsius0.87x0.94inch Suitable Frame: Approx. 68-73mmCelsius2.68-2.87inch