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Specifications

  • Model: RT-MT800
  • Series: Shimano Deore XT
  • Size: 180mm
  • Mount: Center Lock
  • Construction: ICE TECHNOLOGIES FREEZA -- 3-layer stainless-aluminum-stainless with extended radiator fin
  • Heat Reduction: 100 degrees C lower than standard stainless steel rotors

FAQ

Who should run a 180mm rotor vs a 160mm?

Heavier riders, those descending aggressive terrain, or riders who generate significant heat through extended braking benefit most from 180mm. The larger swept area and greater rotor mass absorb and dissipate more heat before fade. If you regularly experience brake fade on long descents with 160mm, step up to 180mm.

Does running a 180mm rotor require a new adapter?

Yes. Running a larger rotor than stock typically requires a post-mount or flat-mount caliper adapter. Check your fork and frame caliper mount spec and rotor size compatibility before ordering.

Is this rotor compatible with Shimano XTR brakes?

Shimano disc brake rotors are broadly cross-compatible across caliper families. The RT-MT800 180mm will work with XTR, XT, SLX, and other Shimano MTB hydraulic disc brake systems. Confirm your hub mount type (Center Lock required) before purchasing.

Best For

Enduro and aggressive trail riders on Center Lock hubs running Shimano XT hydraulic disc brakes who need maximum braking power and heat capacity for sustained descending on technical terrain.

Shimano RT-MT800 Rotor - 180mm | Center Lock Reviews:

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