Description:

Upgrade, high carbon steel , higher hardness, wear resistance, long service life.
Professional anti-off design makes the bottom shaft not easy to fall off, making installation more firm and convenient.
High compatibility, 20 tooth, downward compatible with 16 tooth slots, and the longest compatible with 129mm bottom bracket.
Improved the shape of teeth and slots, protecting the bottom bracket, not easy to break.
Used in square axis.

Specification:

Material: Carbon Steel
Color: Silver
Size:
Bottom Sleeve: 55x24mm/2.17x0.94 inch
Main Pole: 77mm/3.03 inch
Tension Nut: 10mm/0.39 inch

Package Includes:

1 Set Bicycle Bottom Bracket Tool

Note:

1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 1-3mm differences due to manual measurement.