Is the Shimano SM-RT64-S 160mm the Right Center Lock Rotor?

The Shimano SM-RT64-S is a 160mm center lock disc brake rotor engineered for powerful and consistent braking across all riding conditions. Unlike the ICE TECHNOLOGIES rotors in Shimano's higher tiers, the SM-RT64 is a standard stainless steel construction -- straightforward, proven, and compatible with both resin and metal pad compounds, giving it more flexibility than the resin-only SM-RT56. The CENTER LOCK spline mount and lock ring design makes installation and removal faster and more precise than 6-bolt setups, with no bolt torque sequence or alignment concerns.

At 160mm, the SM-RT64-S suits a wide range of trail, gravel, trekking, and commuter disc brake setups on center lock hubs. It spans compatibility across Shimano Deore M6000 and M6100, SLX M5100, GRX 11-speed, and other Shimano hydraulic disc brake systems using center lock hubs. The SM-RT64 is available in sizes from 140mm up to 220mm, and the SM-RT64-S S designation indicates the small/standard size variant. For riders who need a reliable center lock rotor without the cost premium of ICE TECHNOLOGIES construction, and who want the flexibility to run either resin or metal pads, the SM-RT64-S 160mm is a practical and durable choice.