For your safety, please use a BB tool to install and replace the bottom bracket. The integrated system protects the frame and allows for more power output, better than a regular construction bottom bracket. Suitable for 80/100mm frame shell. The steel shell can absorb roundness tolerances for installing the bracket bottom. The bottom bracket is sturdy and durable, providing long service time.

Features: 1. The bottom bracket is sturdy and durable, with long service time. 2. Steel shell can absorb roundness tolerances for mounting bracket bottom. 3.The integrated system can protect the frame, has more power, and is better than the regular structure bottom bracket. 4. Suitable for 80/100mm frame shell. 5.For safety, please use BB tool to install and replace the bottom bracket. Specifications: Material: Steel Suitable: For 80/100mm frame shell Weight: Approx. 420g/14.82oz Size: Approx. 80*142mm/100*155mm/100*177mm Cup thread size and pitch: 34.798mm 1.37*24TPI Structure: Two Bearing Package list: 1 * square hole shaft 2 * screws>


Color: ‎100 * 177MM
Product size: ‎1 x 1 x 1 cm; 385 g