Smooth and consistent braking action
"Smooth and consistent braking action - great price!"
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Description
Shimano RT66 6-Bolt Disc Brake Rotor
SHIMANO's SM-RT66 6-bolt disc brake rotors deliver consistent stopping power in all riding conditions. The disc brake rotor's reliable anti-loosen plate construction makes for quick and secure installation.
Larger disc brake rotor options provide consistent brake performance with more power - 220mm disc brake rotor provides 10% more stopping power than 203mm disc.
- Easy to install anti-loosen plates help secure disc brake rotor bolts in place
- Resin/Metal pad compatible
- Includes rotor fixing bolts and non-turn washers
- Available in Multiple Sizes
- Main Image for Illustration purposes only
Shimano
Shimano RT66 6-Bolt Disc Brake Rotor
Shimano RT66 6-Bolt Disc Brake Rotor
Regular price
$54.99
Regular price
$60.00
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$54.99
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Product ID: GM041822-51
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Overall rating: 4.428571 / 5 from 14 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["quality","pads","rotors"].
Review highlights
Reviews
New pads and rotors fixed
"New pads and rotors fixed the screaming brakes."
Affordable and reliable stopping power
"I needed an affordable rotor that wouldn't compromise stopping power and after two months of riding in all kinds of terrain and steepness, totally impressed with this rotor. Stops on a dime when I need it to and even on the steepest descents where I'm dragging the brakes to control speed, haven't experienced any fade or loss of power. So far, the rotor is wearing pretty good after two months. For those of you who ride hard on a budget, when it comes time to replace a rotor, this is the one to get!"
This is the second set
"This is the second set of these rotors I've owned. The first set was purchased in late 2020 and lasted until March 2025, despite daily riding in the PNW weather. Used in combination with Shimano B05S-RX pads. Overall, they were fine pads. Eventually squeaky, but cleaning the pads helped. They help stop, which is their intended purpose. The 3-star rating is due to the apparent switch in quality control. My original rotors were Japan-made and in-true out of the package (cheap but def 4-star rotors). The new rotors are Indonesia-made but slightly warped out of the package, requiring manual truing to avoid persistent rubbing on the pads. All-in-all, they still stop my bike AND with less squeaking compared to their older Japanese predecessor. Now, I'd like to chalk variations in quality control to my experience, but in reality, these variations are probably expected with cheaper, one-piece rotors. So, I get what I pay for."
Uneven and untrue
"It works but it came out of true and needed to be adjusted. Also the surfaces are uneven which induces vibration as the pads wear it down. It would really improve this produce if the faces were ground flat like some manufacturers do."
Have used these many times.
"Have used these many times. Quality rotors. Only issue I have had is warping, as they don't stay true. Never had issues with noise when using with shimano pads."
all worn out
"I needed a new pair of brake rotors because mine were worn past the point of repair. Received my order within 2 days. The rotors fit perfectly and along with new brake pads work beautifully. I'm very impressed by CambriaBike. Their service and prices are exceptional!"
Good rotors but not made in Japan
"These rotors are a great value and compatible with both resin and metallic pads. Mounting hardware seems to be good quality as well."
Works great like the original
"Works great like the original"
Mot tha good for me
"Mot tha good for me I guess Jain noise and get heted while riding m bike"