Ceramic Hybrid in the XX1

Cassette compatibility: Easily grips cogs from 9 to 24 teeth and is compatible with all cassettes from 5-12 speed

Zero Loss Engagement for fastest shifting

What's in the box: One Shimano SLX SM-RT70 brake rotor and a lock ring

Charging Method and Time: To charge the SeeMee 20 you simply open up the silicone port cover on the back of the light

Shimano HB-M8010 Lock Ring & Washer For Centrelock Wheels PDP|Option Ceramic Hybrid in the XX1If you are chasing a replacement brake rotor Lock Ring for Shimano Centrelock Hubs then this is what you need. Fits all 15 20mm Thru Axles and screws onto all Shimano Centerlock front hubs. These are a 16 notch with a 44mm OD. The require a specific lock ring tool to correctly install. This model replaces the older SM HB20 Lock Ring