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Shimano SM-RT66-S 160mm mountain bike disc brake rotor with orange warning label

Thunder Mountain Bikes

4.5 (123)

SLX SM-RT66 Disc Brake Rotor

Name: Thunder Mountain Bikes SLX SM-RT66 Disc Brake Rotor - SLX SM-RT66 Disc Brake Rotor
Brand: Thunder Mountain Bikes
SKU: 41976489771243
Price: 30.24 USD
Availability: InStock
Rating: 5 (11 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$30.24$36.00

16% off

Quantity

Color

Black

Quantity

Description

Shimano's SM-RT66 6-bolt disc brake rotors deliver consistent stopping power in all riding conditions. The rotor's reliable anti-loosen plate construction makes for quick and secure installation.
Details:

Model No: SM-RT66
Reliable and eas...

Reviews

5.0

15 ratings

Quick shipping from TM and the rotor works great

derek · April 24, 2026

Solid part and solid company to order from.

Michael · October 14, 2025

Decent value, good performance

Picked up a new 6B wheelset so my centerlock XT rotors weren’t going to work. I could have purchased the CL to 6B adapters but instead just decided to get new rotors and pads since these were on sale. I also just bled the brakes, so the combo of a bleed service, new rotors and new metal pads for my SLX brakes should be pretty amazing. Still bedding them in as I have only been out once since Mount ring up, but so far everything feels great.

Nathan · June 6, 2024