Shimano RT-MT900 Center-Lock Disc Rotor

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Shimano RT-MT900 Center-Lock Disc Rotor

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The design of the Shimano XTR / Dura Ace RT-MT900 disc brake rotors is a further development of the successful ICE TECHNOLOGIES FREEZA design.


Shimano RT-MT900 Center-Lock Disc Rotor

While the further weight reduction of 5g and 10g is particularly attractive for the 140mm and 160mm discs, the 180mm and 203mm versions are characterised by a further improvement in heat dissipation of 20°C in intensive tests and are also pleasantly low-weight (203mm: minus 30g).

Features - Shimano XTR / Dura Ace Center-Lock Disc Rotor RT-MT800

  • Stable and versatile brake performance in the most demanding conditions
  • High-performance and consistent brake performance
  • New ICE TECHNOLOGIES FREEZA construction for boosting heat dissipation
  • 140mm and 160mm optimal for Road / Gravel
  • Lockring type with internal (Internal Serration) or external (External Serration) toothing

Product features

  • Use: MTB, Road, Gravel
  • Group: XTR, Dura Ace
  • Model: RT-MT900
  • Disc mount: Center-Lock
  • Pad compatibility: Metal / Resin (with BR-S700 and BR-S7000 Resin only!)

Diameter (choose variant)

  • 140mm
  • 160mm
  • 160mm
  • 180mm
  • 203mm

Lockring type with internal or external tool holder!

Compatibility - Brake Caliper

  • 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-S7000, BR-S700, BR-R9270**, BR-R9170*, BR-R8170*, BR-R8070*, BR-R7070*, BR-4770*, BR-RS805*, BR-R785*, BR-RS785*, BR-RS505*, BR-RS405*, BR-RX810*, BR-RX400*

* not compatible with 203mm
** only compatible with 140mm and 160mm


  • Rotor: Stainless steel / Aluminum
  • Lockring: Aluminum


  • serial color

Weight (manufacturer information)

  • 90g (140mm)
  • 108g (160mm)
  • 133g (180mm)
  • 149g (203mm)


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