If your hubs feature the Shimano Centerlock splined interface rotor mounting system and you want to be able to use traditional 6 bolt type rotors, this simple to use adaptor kit allows you to do so.
Features
Lightweight alloy body with splined interface and 6 fitted stainless pins with a stainless washer and an alloy lockring allows the quick removal of the rotor simply by releasing the low-profile alloy lockring with a standard HG type cassette lockring tool.
Specifications
Material 6061 alloy body and CNC lockring, with stainless pins and washer.
Hub Fitting Shimano Centerlock splined.
Max hub axle 19mm outer axle diameter.
Tool required HG type cassette lockring tool.
Max Torque 40Nm.
Rotor Fitting IS (International Standard) 6 bolt type 
Rotor required Stainless IS 1.8mm minimum to 2.3mm maximum.
Max rotor size 180mm Diameter.