Shimano SM-RT70 Center-Lock Disc Rotor – Superior Braking Performance with Ice-Tech Cooling Technology.

Compatible with Shimano's SLX/105/GRX groupsets, the SM-RT70 Center-Lock disc rotor provides powerful, stable, and quiet braking in all conditions thanks to its Ice-Tech structure, which offers high heat dissipation. The 3-layer sandwich structure prevents a decrease in braking performance even on long and steep descents, increasing durability and accelerating brake surface cooling.

Thanks to the Center-Lock hub compatibility, installation and removal are extremely quick and safe.
This is an excellent choice for those looking for a versatile rotor suitable for road, gravel, and MTB use.

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Key Features

✔ Ice-Tech Cooling Technology

• Stainless steel + aluminum + stainless steel 3-layer rotor structure.

• It reduces the disk surface temperature from 400°C to 300°C.

• Longer brake pad life.

• Quieter braking.

• Less fading (heat-related performance degradation)

✔ Center-Lock Easy Assembly

With Shimano's spline + lock ring design:

• Much faster rotor assembly.

• High centering accuracy

• Increased rigidity and braking efficiency.

✔ Wide compatibility with road, gravel and MTB.

Available in 140mm and 160mm options, ensuring full compatibility with many brake calipers and brake assemblies.

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Technical Specifications

Area of ​​Use:

MTB / Road / Gravel

Model:

Shimano SM-RT70

Mounting Type:

Center-Lock (internal or external threaded lock ring options)

Material:

• Rotor: Stainless Steel / Aluminum / Stainless Steel

• Lockring: Steel

Diameter Options:

• 140 mm internal thread (SM-RT70-SSI)

• 140 mm external thread (SM-RT70-SSE)

• 160 mm internal thread (SM-RT70-SI)

• 160 mm external thread (SM-RT70-SE)

Brake Pad Compatibility:

• Metal and resin (note: BR-S700 and BR-S7000 are only compatible with resin)

Brake Caliper Compatibility:

Compatible with most Shimano SLX, 105, GRX, XT, Ultegra, RX, and RS series models.
( Sizes other than 140 mm and 160 mm are incompatible with some models; Shimano's official list includes all of the above models. )

Weight:

• 121 g (140 mm)

• 133 g (160 mm)

Package Contents:

• 1 x Shimano SM-RT70 Disc Rotor

• 1 Lockring

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Technologies

Ice Technologies

Shimano's thermal management system:

• 3-layer rotor structure

• Less heat generation, greater braking stability.

• Longer brake pad life.

• Quieter braking.

Center-Lock

• Quick and secure assembly.

• More rigid connection

• Improved braking performance.