Shimano SM-RT66
Best reliable upgrade for mountain bikers seeking durable braking performance.
A reliable, one-piece rotor designed for consistent stopping power in varied trail conditions. Its straightforward installation and compatibility with multiple pad types make it a dependable choice for maintaining trail-ready braking performance.
$39.99
More SLX options
Shimano SLX RT66 Rotor
$32.00
Shimano SLX RT70 Rotor
$62.99
Shimano SLX Disc Brake Rotor
$32.99
Shimano SLX SM-RT70-SS
$58.00
Shimano SM-RT66
$49.00
Shimano SM-RT66SP Disc Rotor
$36.00
Shimano SLX SM-RT70-SI Disc Brake Rotor
$50.00
Shimano SLX M7100 Cassette
$154.99
Shimano SLX SM-RT66
$60.00
Shimano SM-RT66
$33.99
Shimano SLX SM-RT70-ME Disc Brake Rotor
$63.00
Shimano SLX SM-RT70-M
$29.99
Who it's for
- Mountain bikers seeking dependable performance on technical descents
- Cyclists looking for a versatile rotor that fits most standard wheels
- Budget-conscious riders wanting quality components without the premium price tag
Who should skip it
- Weight-conscious racers prioritizing the lightest possible bike build
- Enduro racers frequently tackling sustained and high-speed alpine descents
- Riders who prefer a silent braking experience from the first mile
Key Specs
Diameter
180 mm
Mounting Type
6-bolt
Rotor Design
One-piece
Pad Compatibility
Resin and metal
Weight
249.48 grams
Included Hardware
Anti-loosen plates and anti-rotation washers
Still have a question?
Ask Metto anything about the Shimano SM-RT66 before you decide.
