Engineered with the precision and dependability Shimano is known for, the SM-RTAD05 Disc Brake Rotor Adapter enables seamless integration of 6-bolt disc brake rotors onto Center Lock hubs. Whether you're retrofitting older wheels with newer Center Lock hubs or building a custom bike with mixed-component setups, this adapter ensures strong, reliable, and secure disc rotor mounting across all riding conditions.
Built to Shimano’s rigorous standards and part of the Deore M610 series, the SM-RTAD05 features a robust anti-loosen tightening plate system that keeps the rotor firmly in place, even during aggressive braking or off-road abuse. This adapter uses a new-generation external serration lockring, enhancing torque application and improving resistance to loosening under thermal or vibrational stress.
The design is also optimized for mud-shedding performance, reducing build-up in wet or off-road conditions. Compatible with metal and resin brake pads, the adapter is ready for high-performance mountain, gravel, or touring use — especially where mixed terrain demands consistent and dependable braking.
Its wide axle compatibility ensures integration with nearly every modern wheel system, including 15mm/20mm thru-axles, 12mm E-THRU, and 9mm/10mm quick release options — making it the ideal solution for upgrading or transitioning between wheelsets.
Key Features:
6-Bolt to Center Lock Conversion: Install 6-bolt rotors onto Center Lock hubs with ease
Anti-Loosen Plate: Shimano’s reliable locking system prevents unwanted rotor movement
Lightweight & Sleek Design: Clean aesthetics without compromising strength
Mud-Shedding Design: Keeps the interface clear for consistent braking
Pad Compatibility: Fully compatible with both metal and resin brake pads
Wide Axle Compatibility: Front 20mm/15mm E-THRU, 9mm QR; Rear 12mm/10mm E-THRU or QR
Lockring with External Serration: Provides better grip and tightening precision
Specifications:
• Model No: SM-RTAD05
• Series: Shimano DEORE M610
• Color: Black
• Rotor Mount Type: Converts 6-bolt rotor to Center Lock hub
• Lockring Type: External serration (compatible with standard Shimano lockring tools)
• Disc Rotor Compatibility: SM-RT66, SM-RT56
• Incompatible With: SM-RT86/RT76 rotors with aluminum adapters
• Compatible Rotor Sizes: 160 mm, 180 mm, 203 mm
• Axle Compatibility:
✔ Front 20mm Thru
✔ Front 15mm E-THRU
✔ Front 9mm QR
✔ Rear 12mm E-THRU
✔ Rear 12mm Thru
✔ Rear 10mm Thru
✔ Rear 10mm QR
Ideal Use Cases:
Retrofitting 6-bolt rotors on Center Lock hubs
Transitioning between rotor mounting standards
Multi-discipline riders seeking broad compatibility
High-performance setups requiring anti-loosen security
When performance, safety, and compatibility matter, Shimano’s SM-RTAD05 adapter is the trusted solution. From trail to tarmac, it's a smart upgrade for any rider looking to blend modern Center Lock hub tech with tried-and-true 6-bolt rotors.
