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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. 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 intern (RT-MT900-SS)
- 140mm extern (RT-MT900-SSE)
- 160mm intern (RT-MT900-S)
- 160mm extern (RT-MT900-SE)
- 180mm intern (RT-MT900-M)
- 180mm extern (RT-MT900-ME)
- 203mm intern (RT-MT900-L)
- 203mm extern (RT-MT900-LE)
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
Material
- Rotor: Stainless steel / Aluminum
- Lockring: Aluminum
Color
- serial color
Weight (manufacturer information)
- 90g (140mm)
- 108g (160mm)
- 133g (180mm)
- 149g (203mm)
Scope of delivery
- 1 x Shimano RT-MT900 Center-Lock Disc Rotor incl. Lockring
Technologies
Ice-Tech FREEZA
SHIMANO’s ICE TECHNOLOGIES has realized the ultimate clad rotor, incorporating aluminum fins for enhanced heat control. With an increased surface area for heat dispersion, the rotor achieves a 50°C reduction in heat. This in turn generates a 20% increase in braking force durability and a 20% longer pad life.
Center-Lock System
The CENTER LOCK system makes an easy rotor installation possible with spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.
XTR M9100
First ride impression XTR M9100
| Choose variant | 140mm intern, 140mm extern, 160mm intern, 160mm extern, 180mm intern, 180mm extern, 203mm intern, 203mm extern |
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