Shimano Dura-Ace RT-CL900 Center Lock Disc Brake Rotor

Shimano Dura Ace RT-CL900 S - 160mm | Center Lock Shimano

Shimano Dura-Ace RT-CL900 Center Lock Disc Brake Rotor

Shimano Dura-Ace RT-CL900 Center Lock Disc Brake Rotor

Shimano logo

What Three Technologies Make the Dura-Ace RT-CL900 Shimano's Quietest Rotor?

Three separate approaches to the same problem, stacked. ICE TECHNOLOGIES FREEZA is a three-layer stainless, aluminum, stainless sandwich with an extended radiator fin that pulls heat out of the braking surface. A Dura-Ace exclusive 3D Aluminum carrier is optimized in every dimension to resist bending under heat load. And a heat dissipation paint coating accelerates radiation into the surrounding air. Together they prevent the rotor deformation that causes ticking, rubbing, and inconsistent lever feel on sustained descents.

The CENTER LOCK spline mount installs fast and self-centers. Choose 140mm for lighter riders, rear-wheel use, or builds where weight matters most, and 160mm as the standard road size used front and rear on most setups. Both are compatible with Dura-Ace R9200 and R9100 hydraulic disc calipers and cross-compatible with other Shimano road and gravel hydraulic systems on center lock hubs. This is the top rotor Shimano makes for road, and the reason to buy it is quiet consistency on long descents rather than outright power.

Sale
$88.99
$88.99 $100.00
Shipping calculated at checkout.

2 in stock

Size: 160mm
  • Orders over $100 ship free!
  • Estimated delivery: Sep 27 - Oct 01

Ask a question

The fields marked * are required.

more details:

Shimano logo

Specifications

  • Model: RT-CL900
  • Series: Dura-Ace R9200
  • Sizes: 140 mm, 160 mm
  • Mount: Center Lock
  • Technology: ICE TECHNOLOGIES FREEZA, 3D aluminum carrier, heat dissipation paint
  • Construction: Three layer stainless, aluminum, stainless
  • Caliper compatibility: Shimano road and gravel hydraulic disc, including Dura-Ace R9200 and R9100
  • Hub requirement: Center Lock
  • Sold as: Single rotor

FAQ

Should I run 140mm or 160mm?

160mm is the standard road size and works front and rear on most builds. 140mm is common on the rear, and on front wheels for lighter riders or where weight matters most. Check your caliper's rotor size range and adapter requirements before mixing sizes.

What makes this different from other FREEZA rotors?

Three technologies rather than one. FREEZA is the three-layer stainless, aluminum, stainless construction with a radiator fin. The 3D aluminum carrier is Dura-Ace exclusive and resists bending under heat. The heat dissipation paint speeds radiation into the air. Lower tier rotors use some but not all of these.

Why does my rotor tick or rub on long descents?

Usually heat deformation. A rotor that warps slightly as it heats will contact the pads continuously rather than occasionally. Everything in the RT-CL900 targets keeping the rotor flat while hot.

Will this fit a 6-bolt hub?

No. Center Lock uses a splined interface with a lock ring. Your hub must be Center Lock. If your hub is 6-bolt you need a 6-bolt rotor or a Center Lock to 6-bolt adapter.

Are these sold in pairs or individually?

Individually. One rotor per unit, so order two for a full bike.

Best For

Dura-Ace R9200 and R9100 hydraulic disc brake builds Riders who want the quietest, most consistent rotor on long descents Weight-conscious road builds, where 140mm rear is common Anyone chasing brake noise that turns out to be heat deformation

Questions About This One?

Not sure on size, fit, or whether this is the right one for you? Ask us. A real person here will answer.

You are asking about Shimano Dura-Ace RT-CL900 Center Lock Disc Brake Rotor

Goes straight to the shop with the product you were looking at attached. No newsletter signup.

Shimano Dura-Ace RT-CL900 Center Lock Disc Brake Rotor Reviews:

You may also like