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The Shimano SM-RT66 disc brake rotor is designed for cyclists seeking reliable stopping power with a 6-bolt mounting system. It offers enhanced performance in various conditions, particularly mud, and improved durability for Shimano Zee and SLX brake systems. A key consideration is its compatibility with 6-bolt, non-center-lock hubs only.
| Series | Slx |
|---|---|
| Model Part Number | ISMRT66S |
| Brand | SHIMANO |
The main advantage is its effective performance in muddy conditions due to the precision-cut and drilled stainless steel surface, along with improved cooling.
No, the SM-RT66 rotor is specifically designed for 6-bolt, non-center-lock hubs and is not compatible with center-lock systems.
It is ideally suited for Shimano Zee and SLX disc brake systems.
Clean the rotor surface regularly with isopropyl alcohol and a clean, lint-free cloth to remove dirt and contaminants. Avoid touching the braking surface.
This guide specifically focuses on the 160mm size, but other sizes like 180mm and 203mm are also available within the SM-RT66 series.
Typically, rotors are sold separately from mounting bolts. Please check the product listing for specifics, but assume bolts are not included unless stated.
Ensure the rotor is correctly mounted and torqued. Check for frame or caliper interference. Minor adjustments to caliper alignment may be needed.
Clean the rotor surface with isopropyl alcohol. Check brake pad condition and ensure they are not contaminated. Inspect brake lines for air.
Minor bends can sometimes be corrected with a rotor truing tool. For significant bends, replacement is recommended.
Setup:
Compatibility:
Care:
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