Features:
The bottom bracket is solid and with a long service time. Suitable for 68mm frame shell. Please confirm the size before purchase.
The steel shell can absorb roundness tolerance for installing ports of Bracket Bottom. Please use the BB tool to install and replace the bottom bracket for safety.
Integrated System can protect the frame, more power output, it's better than ordinary structure bottom bracket. The weight is very light and does not impose an extra burden on the .
Fine workmanship, precision threads can be better connected, 2 Bearings structure makes the spindle more flexible and less labor-intensive.
If you have any questions about our products, please send us an email and we will respond to you within 24 hours. Thank you for your interest in our products.

Specification:
Suitable: for 68mm Frame Shell
Weight: about 316g/11.15oz
Size: about 68 * 118/120/122.5/124.5/127.5mm
Cups thread size and pitch: 34.798mm 1.37*24TPI
Structure: 2 Bearings

Package List:
1 * Quare Hole Axis
2 * Screws