BB91 Bottom Bracket Mountain Bike Thrd Type Bottom Bracket Accessory

Made of aluminum alloy, strong and , having service life. Applicable frame fiveway: 687300CMm, inner diameter of 24 x 24mm / 0.9 x 0.9in. Sled silicone rubber waterproof has anticorrosion, waterproof, sand prevention effect. Condition: 100 Brand New Item Type: Bottom Bracket Material: Nylon plastic + aluminum alloy + b Optional Color: Black, Red Inner Diameter: Approx. 24 x 24mm / 0.9 x 0.9in, compatible with 22-24mm when matching with diameter Applicable Frame Five-Way: Approx. 68 ~ 7300CMm / 2.7 ~ 2.9in