Shimano XTR MT905 6 Bolt Rotors
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- Description
The pinnacle in mountain bike braking, XTR RT-MT905 6-bolt disc brake rotors deliver superb stopping power for the most aggressive riding.
The pinnacle in mountain bike braking, XTR RT-MT905 disc brake rotors deliver superb stopping power for the most aggressive riding. The ICE TECHNOLOGIES FREEZA rotors dissipate heat to maintain braking performance on long downhill stretches.
Features - Shimano XTR 6-Bolt Disc Rotor RT-MT905 | ICE TECHNOLOGIES FREEZA
- Delivering superb stopping power, consistency, and control for peak performance in the most challenging riding conditions
- Ultimate heat reduction of ICE TECHNOLOGIES FREEZA rotor construction combined with special heat dissipation paint
- Dramatically lower surface temperature improves braking performance and consistency (less fade) while reducing system noise and extending pad life
- 203 mm RT-MT905 operates 100°C cooler compared with a 220 mm stainless steel disc brake rotor under the most extreme conditions with a more compact design
Product features
- Use: MTB, E-Bike
- Group: XTR M9100 / SHIMANO STEPS
- Model: RT-MT905
- Disc mount: 6-Bolt (P.C.D. 44 mm)
- Pad lining shape compatibility: Narrow
- Pad compatibility: Metal / Resin
Diameter
- 180mm
- 203mm
Compatibility - Brake Caliper
- BR-M9100*, BR-M9120, 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-R9170-F*, 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
Material
- Rotor: Stainless steel / Aluminum
Weight (manufacturer information)
- 187g (203mm)

Rotors were bent when they arrived despite them being well packed. I can only assume they left the warehouse like this. No original packaging, usually not an issue.
So spent some time with a rotor tool.
Fine now, just a little disappointed.
I tried HS2 200mm rotors on my XT brakes. The HS2 would overheat and glaze the pads on longer double black descents. I switch back to this Shimano 203 with ice tech and freeza tech, and no more overheating or glazing issues.
Stick with Shimano for your Shimano brakes :)
Very, very nice.
Heat shedding tech? Yes
Nice and straight? Yes
Lighter than an all stainless rotor? Yes
Less likely to vibrate and howl? Oh yes.
Nice.
Great product, price and service 👍