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Shimano's XT RT86 Ice-Tech 6-Bolt Disc Rotor provides excellent stopping performance in all conditions. Featuring a three-layer sandwich construction of stainless steel and alloy 3-layer to rapidly radiate the heat generated whilst riding, this rotor has an excellent shelf-life and generates less noise than a conventional disc rotor.
Mud shedding design rotor blade
Lightweight / heat resistance
Less fade, less noise and longer pad life

Shimano RT86 Rotor Descriptions:

Model No: SM-RT86
Series: SHIMANO DEORE XT M8000 Series
Average weight 187g(203 mm) 154g(180 mm) 135g(160 mm)

With anti loosen tightening plate√
ICE TECHNOLOGIES√
6-bolt (P.C.D. 44 mm) √
Outside diameter_160 mm√
Outside diameter_180 mm√
Outside diameter_203 mm√
Pad material compatibility_Metal√
Pad material compatibility_Resin√
Note:
Product without original box, but it's 100% authentic

Shimano RT66 Rotor Descriptions:

Brand: Shimano
Model: SM RT66
Rotor Size:160mm 180mm 203mm
Series:SHIMANO SLX M7000 Series
Mounting: 6 Bolt
For Bike Type: Mountain Bike
for pads: Metal, Resin
Condition: Brand New without Packing Box
Rotor Material: Stainless Steel
Unique 2-piece rotor construction
Lighter weight, stiffer, and stays cooler than one-piece rotors
6-bolt attachment is compatible with many wheel options
Package Including:
1pc 160mm/180mm/203mm SM-RT66 Rotor

***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***