Shimano RT-CL800 Center Lock Brake Rotor for Ultegra w/ Internal Teeth

Shimano RT-CL800 Brake Rotor - Ice-Tech FREEZA for Ultegra and other brakes

Shimano has developed the RT-CL800 Center Lock brake rotor especially for the Ultegra BR-R8170 road bike disc brake. It is also very suitable for the GRX Gravel brakes. Apart from that, it is also compatible with numerous brake calipers from the MTB sector. The brake rotor features a sandwich construction with an aluminium layer between two stainless steel layers. Thanks to Ice Technologies FREEZA, it provides excellent heat dissipation, even on steep, long descents. In addition, the design has been optimised to keep noise and weight to a minimum. The RT-CL800 comes with a lockring with internal gear teeth, and can be used with both organic and sintered brake pads.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Technical Information:

Mount:

Center Lock

Diameter:

140 mm, 160 mm

Design:

2-piece

Rotor Material:

stainless steel outer and aluminium core sandwich construction

Spider Material:

aluminium

Approved For:

Brake Compatibility:

BR-M9100, BR-M9120, BR-M9110-R, BR-M9000, BR-M9020, BR-M8100, BR-M8120, BR-M8110-R, BR-M8000, BR-M8020, BR-M7100, BR-M7120, BR-M7110-R, BR-M7000, BR-M6100, BR-M6120, BR-M6000, BR-MT520, BR-MT420, BR-M820, BR-M640, BR-U8000, BR-U8020, BR-S7000, BR-S700, BR-R9270, BR-R9170, BR-R8170, BR-R8070, BR-R7170, BR-R7070, BR-4770, BR-RS805, BR-R785, BR-RS785, BR-RS505, BR-RS405, BR-RX820, BR-RX820-LE, BR-RX810, BR-RX400

Brake Pad Compatibility:

sintered*, organic

* with BR-S700 and BR-S7000 only organic

Compatibility:

• for brake pads with narrow pad shape
• lockring with internal teeth: compatible with 9/10 mm quick release and 12 mm thru-axle
• for 15 mm and 20 mm thru-axles, use the SM-HB20 lockring instead

Features:

• FREEZA Ice Technology and sandwich construction for even faster heat dissipation
• first-class reliable braking performance on long, steep descents
• specially designed for low noise and low weight
• lockring made of anodised aluminium (internal toothing)
• painted spider, polished rotor

Technology:

Ice Tech FREEZA
Shimano Ice Technologies provide a fast heat dissipation at your disc brake. The brake pads are equipped with aluminium cooling fins. The brake rotor is constructed using a sandwich technique in which stainless steel encloses an aluminium core. The stainless steel on both flanks ensures long durability, the aluminium allows heat dissipation. FREEZA is the further development of the brake rotor, in which additional, specially coated ribs in the aluminium of the rotor ensure even better heat compensation. This cooling technology creates consistently high performance and longer brake pad durability while reducing fading and brake noise.

Manufacturer Numbers:

140 mm:

IRTCL800SSI

160 mm:

IRTCL800SI

Contents:

• 1 x Shimano RT-CL800 brake rotor
• 1 x Shimano lockrings