Shimano Deore SM-RT56 (ISO)

Heat Resistant. Mud Ready.

The Shimano SM-RT56 is a high-quality stainless steel rotor that utilizes a precision-stamped design to balance weight and structural rigidity. Featuring Shimano’s specialized cutout pattern, it excels at shedding mud and debris while maximizing surface area for cooling. This ensures that even on long descents or in messy trail conditions, your braking remains firm and your lever feel stays consistent.

Why the SM-RT56 is the "Go-To" Replacement:

• Optimized for Resin Pads: Specifically engineered to provide the smoothest engagement and longest life when paired with Shimano’s organic/resin pads (like the B05S-RX).

• Quick-Clean Geometry: The large, open cutouts allow the rotor to "scrape" away mud and water instantly, providing immediate "bite" even in the worst weather.

• Rapid Installation: Features the universal 6-bolt interface and includes high-quality anti-loosen tightening plates, ensuring a secure fit that won't vibrate loose over rough terrain.

• Heat Dissipation: The stamped steel construction is designed to move heat away from the braking track effectively, preventing "glazing" and maintaining stopping power during sustained use.

• Consistent Lever Feel: Precision-leveled at the factory to ensure a perfectly true rotation right out of the box, eliminating the annoying "pulsing" common with budget rotors.

• Deore Level Durability: Built to the exacting standards of the Deore group, meaning it can handle the grit of real-world trail riding better than generic, unbranded alternatives.

Technical Specifications:

• Series: SHIMANO DEORE / ALIVIO

• Mount Type: ISO 6-Bolt

• Material: Stainless Steel

• Pad Compatibility: Resin / Organic Only

• Includes: 6x Mounting Bolts and Anti-Loosen Washers

The Alegro Perspective: In the shop, we call the RT56 the "reliable veteran." If you have a bike that came with standard Shimano brakes, this is the exact replacement you want. It’s incredibly easy to set up, and when paired with fresh resin pads, it is one of the quietest braking systems on the market. It’s not about flashy tech; it’s about having the confidence that your bike will stop exactly when you tell it to, every single time.

Consistent Power. All-Weather Control. Rule the Trail with Shimano.