Shimano Disc Brake Rotor RT-MT900 Centrelock Internal

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

• 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

SPECIFICATIONS

• 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 Internal (RT-MT900-SS)
• 140mm External (RT-MT900-SSE)
• 160mm Internal (RT-MT900-S)
• 160mm External (RT-MT900-SE)
• 180mm Internal (RT-MT900-M)
• 180mm External (RT-MT900-me)
• 203mm Internal (RT-MT900-L)
• 203mm External (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:
  
• 90g (140mm)
• 108g (160mm)
• 133g (180mm)
• 149g (203mm)

TECHNOLOGY
Ice-Tech FREEZASHIMANO’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 SystemThe 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.