Shimano Bicycle Bike Disc Rotor Center Lock Ring for Centerlock hub use
Shimano Disc Rotor Center-Lock Lockring 
 
The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring.
 
The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation.
 
In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
 
The bike center lock made of aluminum alloy, easy to use, light weight, simple and durable.
 
The wheelset hub disc lock suitable for mountain bike, road bikes.
 
Professional manufacturing, stable performance and high reliability.

Center-Lock ring for fixing the disc rotor
 
Material:AL6061 
 
Dimension:40.5x40.5x8mm
 
Color:Black
 
Weight:approx.17g
 
For Shimano Center Lock Hub use