New 2.2 mm Shimano brake discs: more control, durability, and consistency on the most demanding dowhnihlls

Shimano continues to strengthen its Gravity and Trail range with the launch of a new generation of brake discs that are 2.2 mm thick, an evolution designed to meet the current demands of downhill, long-travel enduro, freeride, and the most powerful e-MTBs.  

Shimano introduces new 2.2 mm brake discs for MTB: more power, control, and durability for more aggressive use

The Japanese brand introduces the new RT-CL750 (Center Lock) and RT-6B750 (6 bolts) discs, two models that abandon the traditional thickness of 1.75 mm to adopt a 2.2 mm construction that promises to improve control, thermal management, and durability in extreme conditions.  

A response to the demands of modern MTB

The increase in performance of mountain bikes in recent years, especially in Gravity disciplines and e-MTBs, has also raised the demands on braking systems. More speed, greater weights, and longer descents have put traditional components to the test.

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With these new discs, Shimano aims to provide a more consistent braking experience when temperatures rise and demands are at their peak. According to the company, the increase in thickness is not just about adding more material, but is part of a complete redesign aimed at improving braking stability and the feeling of control.  

One of the most important changes is the incorporation of a new construction of the ventilation holes, which works in conjunction with the increased rotor thickness to improve modulation and maintain a more predictable response during prolonged braking. This also helps reduce hand fatigue during the most demanding descents.  

More resistant to impacts and deformations

In addition to thermal performance, Shimano focuses on durability.

The new 2.2 mm discs offer greater resistance to impacts and deformations, an especially important aspect in disciplines where falls, impacts against rocks, or violent landings can end up bending a conventional disc. The brand claims that this new construction significantly reduces that risk and improves the overall reliability of the system.  

Goodbye to 203 mm: Shimano opts for 200 mm

Another notable change is the replacement of the traditional 203 mm diameter with a new 200 mm size.

Shimano explains that this adjustment facilitates the installation and alignment of the calipers, often eliminating the need for additional spacers or adapters. The result is a cleaner interface between the caliper and frame or fork, as well as broader compatibility with current market standards.  

Alongside the 200 mm discs, the brand will also offer 220 mm versions for those seeking maximum braking power on Gravity bikes or high-performance electric bikes.  

Compatible with the new XTR, XT, and DEORE brakes

The new discs have been developed to work with Shimano's latest generation of four-piston brakes and are compatible with the recent XTR, DEORE XT, and DEORE groups introduced by the brand. This allows users to upgrade their bikes without needing to change the entire braking system.  

The arrival of these discs also reinforces Shimano's strategy to evolve its entire braking platform towards more robust standards, ready for the current demands of competitive and advanced recreational MTB.

Available models and specifications

The new discs will be marketed in two versions:

• RT-CL750 (Center Lock)
• RT-6B750 (6 bolts)

Main features:

• Thickness of 2.2 mm.
• Greater consistency and control in braking.
• New ventilation construction.
• More resistance to deformations and impacts.
• Diameters of 200 mm and 220 mm.
• Center Lock and 6-bolt versions.
• Compatible with Shimano XTR, DEORE XT, and DEORE four-piston brakes.  

With this launch, Shimano adopts a trend that was already beginning to be seen in some high-performance Gravity systems and officially integrates it into its catalog, betting on more robust rotors to accompany the evolution of the fastest and most capable mountain bikes today.