LeBycle Threaded Bike Bottom Bracket CNC Machining BB91 Mountain Bike Bottom Bracket for Outdoor Cycling

Ceramic Bearing: Threaded bottom bracket, aluminum alloy frame, fluent pedaling, low noise, light weight while maintaining strength. Has a performance. Integral Sealed: Prolong the service life, integral sealing, keep the lubricant in the bearing, good dustproof and waterproof effect, suitable for harsh riding environment. Accuracy Machined: high strength aluminum alloy, strengthens lateral stability, is not easy to loosen, and rejects abnormal noise. CNC process, light weight while still maintaining high strength. Item Type: Bikes Bottom Bracket Gross Weight: 122g Celsius 4.3oz Material: Aluminum alloy, steel Adaptation: 5 way length: 68-73mm Celsius 2.7-2.9in Applicable Crankshaft : For series 22-24,  for 24-24 series