High Quality-The bottom bracket is made of stainless steel, solid with a long service time. Light weight, no additional burden.
compatible with Size-Suitable for 80/100mm frame shell. Cups thread size and pitch 34.798mm 1.37 * 24TPI.Please use the BB tool to install and replace the bottom bracket for safety.
Integrated System-Integrated system can the frame, more power output, it's better than ordinary structure bottom bracket. With two screws, easy to install.
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Guarantee-If you have any questions about our products, please send us an email and we will get back to you as soon as possible within 24 hours.