Bike Bottom Bracket 68‑73mm Reduce Noise Stability Resin Washer Sturdy High Accuracy Bike Accessories

External thread, aluminum alloy frame, Palin bearing, reduce noise, easy maintenance and lubrication Fine thread and thread lock enhance the lateral stability without loosening and then no abnormal sound Quickly distinguish the left and right, the left and right marks of L, R are clear, and the sign indicates the tightening direction Item Type: Bike Bottom Bracket Material: Aluminum Alloy , PP Commodity Size: Total Length Approx. 91.5mm Celsius 0.1in , Inner Diameter Approx. 24mm Celsius 0.03in , Outer Diameter Approx. 44.6mm Celsius 0.05in Tooth Pattern Specification: 1.37-24T Tooth Pattern Outer Diameter: Approx. 34mm Celsius 0.04in Washer Size: Outer Diameter Approx. 40.5mm Celsius 0.04in , Inner Diameter Approx. 34.5mm Celsius 0.04in and Thickness Approx. 2.5mm Celsius 0.003in Type: Threaded Scope of Application: Approx. 68-73mm Celsius 0.07-0.08in Five Way, Built In Sealed Bearing, Rotation