NEW Shimano XTR RT-MT905 6-Bolt Rotors with ICE TECHNOLOGIES FREEZA (The best MTB Disc Brake Rotor?)
Shimano XTR RT-MT905 6-Bolt Rotors
6-Bolt Mounting Type
ICE TECHNOLOGIES with FREEZA
Available sizes: 180mm (130g) and 203mm (170g)
Weight: 130g (180 mm) and 170g (203 mm)
Availability: Early 2022
Brake Compatibility: 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*
Brake Pad Compatibility: sintered**, organic
* not compatible with 203 mm
** with BR-S700 and BR-S7000 only organic
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Shimano Press Release:
OSAKA, Japan – Recognizing rider demand for better heat dissipation, Shimano introduces the long-awaited addition of a 6-bolt rotor option with ICE TECHNOLOGIES FREEZA construction. Already proven in World Cup and EWS competitions this season with the Santa Cruz Syndicate and Rocky Mountain Race Face Enduro teams, the new RT-MT905 rotor delivers massive heat management benefits without increasing rotor diameter or thickness for the ultimate in lightweight, cooling performance.
Shimano ICE TECHNOLOGIES FREEZA rotors offer an incredible 150C (270F) reduction in heat build-up when compared to standard stainless-steel rotors. This allows riders to use smaller rotor options that offer greater ground clearance and lower overall weight, all while maintaining reliable, consistent braking performance under all conditions.
Earlier this year, Shimano responded to rider demand for greater heat dissipation at a high value price and added a larger 220mm stainless steel rotor option for CENTER LOCK and 6-bolt hubs (SM-RT64/SM-RT66). Now, the catalog is expanded again with the new RT-MT905, allowing racers and riders requiring 6-bolt rotors to benefit from premium ICE TECHNOLOGIES FREEZA cooling performance and run to smaller rotor sizes with even better levels of heat management. Available in both 180mm and 203mm options, the new RT-MT905 rotor delivers unprecedented cooling benefits in a 6-bolt rotor option.
Proprietary 3-Layer Construction
An extra layer of heat protection, ICE TECHNOLOGIES FREEZA rotor construction uses a proprietary three-layer sandwich design with exposed radiator fin. Together with the heat dissipating paint, FREEZA rotors deliver supercooling forces for even more reliable braking performance and lighter operation under all conditions. ICE TECHNOLOGIES FREEZA rotors provide consistent braking performance with longer pad life, less brake fade and noise.
150C (270F) Overall Heat Reduction
10% longer pad life (When compared to stainless steel rotors)
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