Shimano RT-MT900 Center Lock Brake Rotor f. XTR / Dura-Ace Internal Serration

Item number: 62092
RT-MT900 Center Lock Brake Rotor f. XTR / Dura-Ace Internal Serration - silver-black/140 mm
RT-MT900 Center Lock Brake Rotor f. XTR / Dura-Ace Internal Serration - silver-black/160 mm
RT-MT900 Center Lock Brake Rotor f. XTR / Dura-Ace Internal Serration - silver-black/180 mm
RT-MT900 Center Lock Brake Rotor f. XTR / Dura-Ace Internal Serration - silver-black/180 mm
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.91 / 5.00

The XTR and Dura-Ace RT-MT900 Brake Rotor by Shimano - Optimised in every respect

The Shimano RT-MT900 brake rotor was designed and developed on the basis of the successful Ice Tech FREEZA rotors. In the 140 mm and 160 mm versions, which are aimed particularly at road bike and cross-country riders, a weight reduction of 5 and 10 g respectively has been achieved. The 180 mm and 203 mm versions, specially designed for Enduro riders, are characterised by further improved heat dissipation and are, of course, also weight-optimised.

Technical Information:

Mount: Center Lock
Diameter: 140 mm, 160 mm, 180 mm, 203 mm
Design: 2-piece
Rotor Material: stainless steel outer and aluminium core sandwich construction
Spider Material: Aluminium
Lockring 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-S7000, BR-S700, BR-R8270**, BR-R9170*, BR-R8170*, BR-R8070*, BR-R7070*, BR-4770*, BR-RS805*, BR-R785*, BR-RS785*, BR-RS505*, BR-RS405*, BR-RX810*, BR-RX400*
Brake Pad Compatibility: sintered***, organic

* not compatible with 203 mm (BR-R9170-R also not compatible with 180 mm)
** only 140 and 160 mm
*** with BR-S700 and BR-S7000 only organic


- performance indicator: ultimate (level 3 out of 3)
- stable and versatile braking performance under the toughest conditions
- revised Ice Technologies FREEZA design for even faster heat dissipation
- 140 and 160 mm optimal for Cross Country in terms of light weight
- 180 and 203 mm optimal for Enduro in terms of heat dissipation
- painted spider, polished rotor, anodised lockring (internal teeth)
- for brake pads with narrow pad shape

Note: For 15 mm and 20 mm front thru axle hubs, the SM-HB20 lockring must be used.


Ice Tech FREEZA brake rotors show even less fading due to 40° C less heat development compared to SM-RT98. The three-layer sandwich construction consists of stainless steel flanks and an aluminium core with integrated cooling fins. The two-part structure with the aluminium spider dissipates the heat well. The dirt-repellent design extends the service life of the rotor and pads. A real eye-catcher is the sporty, aggressive high-tech design.

Manufacturer Numbers:

140 mm: I-RTMT900SS
160 mm: I-RTMT900S
180 mm: I-RTMT900M
203 mm: I-RTMT900L


- 1 x Shimano RT-MT900 brake rotor
- 1 x lockring


  • silver-black/140 mm: 89 g
  • silver-black/160 mm: 108 g
  • silver-black/180 mm: 131 g
  • silver-black/203 mm: 147 g


  • silver-black/140 mm, in stock
  • silver-black/160 mm, in stock
  • silver-black/180 mm, in stock
  • silver-black/203 mm, in stock

Customer Reviews (2)


Customer Reviews (2)


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by Christian G.  on 31.01.2021
verified purchase

Hammer Bremsscheibe. Habe meine Sm RT99 am Gravel Bike gegen diese getauscht und bin nicht enttäuscht wurden. Sie ist super leicht und verzieht sich auch bei starken Brems- / Sprintmanövern nicht. Definitiv ihren Preis wert!

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by Lukas S.  on 08.05.2020
verified purchase

Unglaublich tolle Bremsscheibe! Fahre sie auf meinem Crosser, die Bremsleistung ist spürbar besser und effizienter.
Mit 108,9 g (160mm) ist sie auch sehr leicht (leichter als die Dura Ace) werde sie deshalb auch auf meinen Straßenrädern installieren. Klare Kaufempfehlung!

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