Features: The crank screw hexagon socket can effectively avoid the influence of external water, sand, mud on the centre and increase the service life.
Easy to Install: The crank screw hexagon socket is small, sturdy and lightweight, portable and easy to install. Quick assembly in just a few simple steps.
The bottom bracket crank screws high-quality aluminium alloy material, seal, no separate crank cover required, strong and
Application: The square taper bottom bracket crank screw hexagon socket fit for almost bicycle types and suitable for square crank set and bottom bracket.