Features:
quality:The bottom bracket is solid and with a long service time. The steel shell can absorb roundness tolerance for installing ports of Bracket Bottom.
More Practical:Integrated System can protect the frame, more power output, it's better than ordinary structure bottom bracket. Cups thread size and pitch is 34.798mm 1.37*24TPI.
BB Tool Install:Suitable for 80/100mm frame shell. Please use the BB tool to install and replace the bottom bracket for safety.
Long Service Life:The sealed cartridge 2 bearings assemble keeps out dirt, mud and water offering a great bearing life.
Guarantee: 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:
Material: Steel
Suitable: for 80/100mm Frame Shell
Weight: about 420g/14.82oz
Size: about 80*142mm/100*155mm/100*177mm
Cups thread size and pitch: 34.798mm 1.37*24TPI
Structure: 2 Bearings

Package List:
1 * Quare Hole Axis
2 * Screws