The Shimano SM-RT66 is a dependable 160mm disc rotor built for everyday trail and cross-country riding. Its one-piece stainless steel design shrugs off corrosion and stands up to hard, repeated braking, while the anti-loosen plate keeps the rotor bolts secure for quick, confident installation.

Highlights

• Consistent, reliable stopping power in wet or dry conditions
• One-piece stainless steel construction resists corrosion and warping
• Compatible with both resin and metal brake pads, so you can run your preferred compound
• Anti-loosen plate keeps rotor bolts secure for fuss-free fitting
• Standard 160mm size suits cross-country and trail bikes, front or rear

Built to last

Machined from a single piece of stainless steel, the SM-RT66 holds its shape under heavy braking and resists the corrosion that comes with Australian conditions, from coastal humidity to muddy winter trails.

Run your pad of choice

This rotor is rated for both resin and metal pad compounds. Run quieter resin pads for dry trails, or switch to sintered metal pads when you need extra bite and durability in the wet.

Quick, secure installation

Shimano's anti-loosen tightening plate helps hold the rotor bolts in place, making fitting straightforward and keeping everything tight once you are riding.

Compatibility & fit

160mm diameter with a standard 6-bolt mount on a 44mm bolt circle, fitting any 6-bolt hub. Compatible with both resin and metal brake pads. Suits Shimano and cross-compatible 6-bolt disc brake setups. Supplied with rotor fixing bolts and non-turn washers.