Shimano SM-RT66 ZEE / SLX Rotor, 203 mm, 6-Bolt

The Shimano SM-RT66 is a durable, performance-focused brake rotor designed for demanding applications, positioned at the SLX/ZEE component level. This specific version measures 203mm in diameter, offering powerful stopping force suitable for downhill and enduro riding. Unlike Center Lock models, the SM-RT66 uses the traditional 6-bolt mounting system, ensuring a secure fit on compatible hubs. Its robust construction provides reliable heat management and excellent modulation, delivering consistent performance and bite in all conditions.

Features:

• Robust Performance Level: Classified at the SLX/ZEE level, this rotor is engineered for durability and reliable performance in aggressive mountain biking and demanding conditions.

• Optimal 203mm Diameter: The substantial 203mm size provides maximum stopping leverage and increased heat capacity, ideal for sustained braking on long descents.

• Durable Two-Piece Construction: Features a steel braking surface mounted to an aluminium spider for an excellent balance of heat management, stiffness, and reduced weight, though it lacks the sophisticated three-layer composite of Ice-Tech FREEZA.

• Reliable Heat Management: While not featuring FREEZA fins, the rotor design and large diameter effectively dissipate heat to maintain consistent stopping power and reduce the risk of fade during heavy use.

• Enhanced Service Life and Quiet Operation: The two-piece structure helps maintain thermal stability, which contributes to longer pad life and aids in reducing braking noise compared to basic rotors.

• Secure 6-Bolt Mounting: Utilizes the universally compatible 6-bolt mounting interface, ensuring a strong, secure, and straightforward installation onto any compatible hub.

• Optimized Braking Track: The precision-cut braking surface is designed to improve pad-clearing capability in muddy conditions and promotes effective cooling for dependable performance.

• Lightweight, Rigid Support: An aluminium alloy spider provides a highly rigid and lightweight foundation, securely supporting the stainless steel braking track.

• Consistent Braking Finish: The braking track is machined for a smooth, high-contact surface, ensuring excellent and predictable braking feel.

• Simplified Sizing: This rotor is specifically offered here in the 203mm size, utilizing the standard 6-bolt attachment system.