Description

Shimano SM-RT66 Disc Brake Rotor – SLX / Deore 6-Bolt Rotor

160mm / 180mm / 203mm / 220mm Sizes Available

Upgrade your braking performance with the genuine Shimano SM-RT66 Disc Brake Rotor, designed for reliable stopping power, excellent heat management, and long-lasting durability across MTB, trail, enduro, downhill, gravel, and touring bikes.

Part of Shimano’s trusted Deore / SLX braking range, the SM-RT66 rotor delivers consistent braking performance in all weather conditions while maintaining excellent modulation and control on technical terrain.

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Sizes Available

• 160mm
• 180mm
• 203mm
• 220mm

Please select your required size from the drop-down menu.

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Key Features

• Genuine Shimano SM-RT66 Rotor
• Standard 6-bolt fitting
• Reliable and easy anti-loosen plate design
• Compatible with resin and metal brake pads
• Excellent braking performance in wet and dry conditions
• Strong stainless steel construction for durability
• Ideal for MTB, trail, enduro, downhill & e-bike use
• Includes genuine Shimano rotor fixing bolts

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Included

• 1 x Shimano SM-RT66 Rotor
• Rotor Bolts Included

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Compatibility & Application

The Shimano SM-RT66 rotor is compatible with any bicycle hub using the standard ISO 6-bolt rotor mounting system.

Suitable for use with:

• Shimano Deore brakes
• Shimano SLX brakes
• Shimano XT brakes
• Shimano XTR brakes
• Many SRAM, Avid, Hope, Magura & TRP brake systems using compatible pads and calipers

Compatible with both:

• Resin brake pads
• Metal / sintered brake pads

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Why Choose Shimano SM-RT66?

The Shimano SM-RT66 is one of the most trusted disc brake rotors in mountain biking thanks to its excellent balance of braking power, durability, and affordability. The wide braking surface improves pad contact and consistency, while Shimano’s anti-loosen plate system helps keep rotor bolts secure even under aggressive riding conditions.

Whether you’re upgrading worn rotors or improving stopping performance on steep descents, the SM-RT66 is a dependable choice trusted by riders worldwide.

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IMPORTANT SIZING INFORMATION

Please ensure you select the correct rotor size for your bike before purchasing. Your frame and fork must have sufficient clearance for larger rotor sizes, and adapters may be required depending on your brake setup.

If unsure, please contact us before ordering and we will gladly help confirm compatibility.

Please note Packaging displayed may alter.

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Why Choose Hopkinson Cycles?

✅ Free UK Postage
✅ Experienced Family-Run Bike Shop
✅ Professional Technical Advice
✅ Friendly Customer Service From Real Cyclists
✅ Thousands of Positive Reviews
✅ Fast Dispatch From Our West Yorkshire Store

We stock a huge range of Shimano parts, bearings, tools, brakes, drivetrain components, and workshop essentials ready for fast dispatch.

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📍 Hopkinson Cycles
Queen Street
Horbury
Wakefield
West Yorkshire
WF4 6LP

📞 01924 274209
📧 info@hopkinsoncycles.com