Lixada Bicycle Bottom Bracket-PF30 Bottom Bracket Road Bike 24MM Bearing Bottom Bracket 68-73mm Bike Bottom Bracket for Shimano SRAM GXP Prowheel

Feature: For 68-73mm road bike bottom bracket frame. Compatible with 24*24mm Shimano or 24*22mm SRAM GXP with a conversion ring. Special threaded interlocking bottom bracket design to reduce noise and for easy installation and maintenance. Double O ring keeps water or dust out of the frame and works as the buffer between the frame and BB. Aluminum alloy construction for long service time. Specification: Material: Aluminum alloy Model: BB30 / PF30 (optional) Inner dia.: 24*24mm / 24*22mm(with a conversion ring for 22mm crank axle) Outer dia.: 46mm BB frame length: 68-73mm Compatible: Shimano / SRAM GXP / Prowheel Weight of BB: 136g / 4.7oz   Package weight: 150g / 5.2oz Package list? 1 * Bottom Bracket 1 * Conversion Ring