Shimano RT-MT800 Disc Rotor - External Spline Type

$70.00

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Color
Size

In Stock Ships Immediately

SKU: IRTMT800SSE Option: Black / 140mm

Stock Availability by Location

RA Cycles Brooklyn In stock

105 5th Ave, Brooklyn, NY 11217718-636-5242

* Available for in-store pickup in 2-4 hours

RA Cycles Walnut Creek In stock

2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099

* Available for in-store pickup in 2-4 hours

Distribution Center - East — Out of stock

Distribution Center - Central — Out of stock

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Shimano RT-MT800 Disc Rotor - External Spline Type Info

The Shimano RT-MT800 Disc Rotor - External Spline Type is a heat-managing rotor built around Shimano's IceTech Freeza construction — a three-layer aluminium-clad steel design engineered to pull heat away from the braking surface and reduce fade on long descents or repeated hard stops. Originally developed for XTR-level builds, it carries that same thermal performance and braking consistency across a wide range of compatible Shimano groupsets, from mountain to road.

The external spline interface is straightforward to install and pairs with Shimano's Centre Lock hubs. Four size options — 140mm through 203mm — mean it suits everything from cross-country race builds running minimal rotor diameters to trail and enduro bikes where additional stopping leverage makes a real difference on steep terrain.

Shimano RT-MT800 Disc Rotor - Specs at a Glance

  • Mount type: Centre Lock (External Spline)
  • Available sizes: 140mm, 160mm, 180mm, 203mm
  • Construction: IceTech Freeza — aluminium-clad three-layer steel
  • Finish: Black
  • Compatibility: XTR, XT, and compatible 12-speed Shimano road groups

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