Shimano RT-CL900 Center Lock Brake Rotor w/ Magnet + Internal Teeth - black-silver/160 mm

Shimano RT-CL900 Center Lock Brake Rotor w/ Magnet + Internal Teeth

Item number: 88963

Shimano RT-CL900 Brake Rotor w/ magnetic lockring for e-bikes

The RT-CL900 Center Lock Dura-Ace brake rotor is also available with a magnetic lockring with internal gear teeth for the Shimano EW-SS302 speed sensor. In this version, it is suitable for e-bikes equipped with DU-EP800, EP801 or EP600 motors and is intended for use on the rear wheel only. The brake rotor features a sandwich construction with an aluminium layer between two stainless steel layers. Thanks to Ice Technologies FREEZA and a special heat-dissipating coating, it won't overheat even on steep, long descents. In addition, the design has been optimised to keep noise and weight to a minimum. The RT-CL900 can be used with both organic and sintered brake pads and is compatible with a wide range of calipers.

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:

Center Lock
160 mm
Rotor Material:
stainless steel outer and aluminium core sandwich construction
Spider Material:

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


  • EW-SS302 speed sensor
  • DU-EP800 / DU-EP800-CRG motor
  • DU-EP801 / DU-EP801-CRG motor
  • DU-EP600 / DU-EP600-CRG motor
  • for brake pads with narrow pad shape
  • only for use on the rear wheel (in combination with e.g. RT-CL900 standard version on the front wheel)
  • lockring with internal teeth: compatible with 10 mm quick releases and 12 mm thru-axles


  • including magnetic lockring (internal toothing) for Shimano speed sensor EW-SS302 for disc brake
  • FREEZA Ice Technology and sandwich construction for even faster heat dissipation
  • heat-diffusing lacquer
  • first-class reliable braking performance on long, steep descents
  • specially designed for low noise and low weight
  • lockring made of anodised aluminium
  • painted spider, polished rotor


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 Number:



  • 1 x Shimano RT-CL900 brake rotor
  • 1 x Shimano magnetic lockring for EW-SS302


  • black-silver/160 mm: 114 g
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.88 / 5.00


  • black-silver/160 mm, in stock

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