Brake rotor for e-bike Clarks CL-01 180mm IS 6-bolt, thickness 2.3mm, silver

Clarks CL-01 180mm is a silver-finished brake rotor engineered for e-bikes with a 6-bolt IS (International Standard) hub interface. With a working diameter of 180 mm and a rotor thickness of 2.3 mm, this rotor provides the friction surface required for hydraulic or mechanical disc brake calipers used on city and trekking electric bicycles. The design focuses on compatibility, predictable braking feel, and longevity under the additional loads commonly encountered on e-bikes.

Advantages

The CL-01 rotor combines a standardized 6-bolt mounting with a medium 2.3 mm thickness to balance heat dissipation, stiffness, and wear resistance. Its 180 mm diameter delivers a compromise between stopping power and weight, making it suitable for urban and light touring use. The silver finish provides corrosion resistance and a neutral appearance that integrates with a wide range of e-bike components.

Suitable for

• City and commuter e-bikes requiring reliable everyday braking.
• Trekking and light touring electric bicycles where moderate braking torque is needed.
• Wheel hubs and frames with IS (6-bolt) disc brake mounts.
• Hydraulic or mechanical disc brake systems compatible with 180 mm rotors.

When it may not be suitable

This 180 mm rotor may be insufficient for very heavy e-bikes, cargo bikes, or aggressive downhill riding where larger diameters or heavy-duty rotors are preferred to increase braking torque and thermal capacity. Similarly, it is not compatible with centerlock hubs or frames that require a different mounting standard.

Key specifications

• Rotor diameter: 180 mm
• Mounting interface: IS (6-bolt)
• Thickness: 2.3 mm
• Finish: Silver
• Designed use: E-bike (city/trekking)

How to use

Install the rotor onto a compatible 6-bolt hub following the wheel and brake manufacturer torque specifications. Ensure the rotor is correctly aligned within the brake caliper and that the caliper mounting and pad clearance are set to prevent rubbing. After installation, perform a controlled bedding-in procedure by making several gradual stops from moderate speed to transfer brake pad material evenly onto the rotor surface. Periodically inspect the rotor for wear, warping, and contamination, and replace if thickness falls below the manufacturer’s safe limit or if performance degrades.

What to consider before purchase

• Confirm your wheel hub or adapter uses IS 6-bolt mounting.
• Verify that your brake caliper supports a 180 mm rotor and that frame/fork clearance is sufficient.
• Check compatibility with your brake pads (metallic vs organic) for intended performance and wear characteristics.
• Consider intended use: heavier loads or steep descents may require larger or higher-capacity rotors.

Usage recommendations

For consistent performance, bed in the rotor with progressive stops, avoid contaminating the surface with lubricants, and inspect mounting bolts for proper torque before each long ride. Replace rotors that show pronounced groove wear, warping, or if braking performance declines.