Bicycle Bottom Bracket, 5 Size Square Hole Axis Bike Tapered Spindle Crank for 68mm Frame Shell Cycling Accessory(68X118L)

DURABLE QUALITY: The bottom bracket is solid and sturdy, withstand long time using. GREAT DESIGN: The steel shell can absorb roundness tolerance for installing ports of Bracket Bottom. HIGH PERFORMANCE: Integrated System can protect the frame, more power output, it's better than ordinary structure bottom bracket, a must have cycling accessory. EASY USAGE: Suitable for 68mm frame shell. Please use the BB tool to install and replace the bottom bracket for safety. GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. In terms of any problem of this product, you can send emails as soon.