Integral Sealed Bearings: Integral sealed steel bearings extend service life. Keep the lubricant in the bearing, good dustproof and waterproof effect, suitable for harsh riding environment.
Stable Performance: Sturdy aluminum alloy enhances lateral stability, is not easy to loosen, and rejects abnormal noise.
Good Features: Aluminum alloy frame, smooth pedaling, reduce noise, light weight while maintaining high strength.
Precise Machining: The service life of precise machining is increased, and the bottom bracket sealing performance is good.
Product Size: Inner diameter is 30mm / 1.18in, outer diameter is 44mm / 1.73in, applicable frame diameter is 41mm / 1.61in.