Shimano Dura-Ace RT-CL900 Brake Disc Incl. Lockring (internally Splined)

Super-silent and extremely robust: When developing the RT-CL900 disc rotor, SHIMANO paid even more attention to optimal heat dissipation. The goal: Prevent heat-related deformation for even quieter braking – without compromising on weight, stopping power and stability.

For this purpose, the design of the spider was specially adapted, resulting in a more stable construction overall. The proven ICE TECH FREEZA technology also ensures first-class heat management at the friction ring. The ring’s sandwich construction with an aluminium core between two stainless steel layers effectively dissipates heat via the integrated cooling fins with additional thermal coating – for increased resistance against fading and improved braking performance. You can therefore rely on the reliable braking performance of the RT-CL900 brake disc even on long, steep descents in all conditions.

Details:
• SHIMANO Dura-Ace R9200 series disc rotor incl. internally splined lockring
• Two-component design for a low weight and high stiffness
• ICE-Tech-Freeza: aluminium core between two stainless steel layers for effective heat dissipation
• Cooling fins with additional thermal coating on the inside of the friction ring
• Optimised carrier design for low-noise braking
• For organic or sintered brake pads

Technical details:
• Intended use: Road, Gravel, CX, CC
• Material: stainless steel, aluminium (disc), aluminium (carrier, lockring)
• Brake disc mount: Centerlock
• Weight (without lockring): approx. 96 g (Ø 140mm), approx. 114 g (Ø 160)

Available with rotor diameter:
• Ø 140 mm
• Ø 160 mm
Please indicate your choice.

In the box:
• 1 SHIMANO Dura Ace RT-CL900 disc rotor
• 1 SHIMANO lockring (internally splined)

Attention:
The lockring version with internal splines is suitable for quick release hubs (QR) and most thru axle hubs up to 12mm diameter. ATTENTION: In some cases, you may also need the lockring with external splines for 12mm thru axles (prod. code: 2332831).