Shimano RT900 Centrelock Lockring

Disc rotor lock ring with cassette tool interface. Used to attach centrelock rotors to hubs with 12mm thru-axles.

Specifications
Cassette Tool Interface
40nm to tighten
Compatible with Shimano Dura-Ace rotors

Mfr Claimed Weight
TBC

NOTE: Sold as a single lockring & washer.