Shimano Deore Disc Rotor - RT-MT800LI - 203 mm

Shimano Deore disc rotor with internal lockring, Ice Tech FREEZA, 203 mm. This rotor offers excell...

Best current price£43.99from Team Cycles

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Team CyclesShimano Unisex Silver Disc Rotor Rt-Mt800 C/Lock
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eBayShimano XT Disc Brake Rotor RT-MT800 Centre-Lock Ice Tech FREEZA. 180mm. INT.
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Leisure Lakes BikesShimano RT-MT800 Deore XT Disc Rotor with Internal Lockring Ice Tech Freeza 160mm Silver
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Product Information

Full details

This guide is for cyclists seeking improved braking performance and heat management, especially during demanding descents or long rides. The Shimano Deore RT-MT800LI disc rotor offers superior heat dissipation thanks to its Ice Tech FREEZA technology and multi-layer construction, resulting in less fade and longer pad life. However, its advanced construction may require specific tools or knowledge for optimal installation.

All features

SeriesDeore
Model Part NumberRTMT800LI
BrandSHIMANO

Extended Product Information

FAQs

What is the main benefit of Ice Tech FREEZA?

Ice Tech FREEZA is a heat-shedding system that significantly reduces brake temperatures, preventing brake fade and extending the life of your brake pads.

Is this rotor compatible with all brake systems?

This rotor is designed for centerlock hub systems and is optimized for use with Shimano hydraulic disc brakes and Ice Tech pads. Compatibility with other systems may require adapters and could affect performance.

Can I use a smaller rotor with this brake setup?

While you can technically use a smaller rotor, it would negate the benefits of the 203mm size and advanced heat management this rotor offers. It's recommended to match the rotor size to your riding needs and bike setup.

How do I clean the disc rotor?

Use isopropyl alcohol and a clean, lint-free cloth to wipe down the rotor surface. Avoid using harsh chemicals or abrasive cleaners.

What is the difference between this rotor and the Deore XT version?

The Deore XT RT-MT800 rotor (a sibling product) is generally lighter and may feature slightly different construction for higher-end performance, though both utilize similar Ice Tech technology.

Do I need special tools to install this rotor?

Yes, you will need a specific tool to tighten and loosen the internal lockring that secures the rotor to the hub. A 15mm wrench or similar is typically needed for the lockring.

How often should I check my disc rotor?

It's recommended to inspect your disc rotor visually before every ride for any obvious damage. More thorough checks for wear and true can be done during regular maintenance intervals, typically every few months depending on riding frequency.

Troubleshooting

Brake squealing or noise

Ensure rotors are clean and free from oil or contaminants. Check that the rotor is properly seated and the lockring is torqued correctly. Bed in the pads and rotor if they are new. Ensure brake pads are compatible and not contaminated.

Reduced braking power

Inspect the rotor for wear or damage. Check brake pad wear and condition. Ensure the hydraulic brake system is properly bled and functioning. Clean the rotor surface.

Rotor rubbing against pads

Verify the wheel is correctly seated. Check that the brake caliper is aligned properly with the rotor. Ensure the rotor is not warped. Loosen caliper bolts, squeeze brake lever, and retighten caliper bolts while holding the brake lever.

Pros and Cons

Pros

  • Superior heat dissipation reduces brake fade on long descents.
  • Increased stopping power due to the 203mm diameter.
  • Enhanced durability and pad life from effective heat management.
  • Consistent braking performance in wet and dry conditions.
  • Internal lockring design for a clean and secure fit.

Cons

  • May be overkill for casual riding or lighter bikes.
  • Requires specific tools for installation (e.g., lockring tool).
  • The advanced cooling may not be fully utilized in dry, flat terrain.
  • Can be more expensive than basic steel rotors.

Setup, Compatibility & Care

Setup:

  1. Ensure your wheel hub is compatible with a centerlock rotor mount.
  2. Use a compatible lockring tool to securely fasten the internal lockring onto the hub body. Torque specifications should be followed as per Shimano's recommendations.
  3. Align the rotor correctly with your brake caliper, ensuring smooth engagement.

Compatibility:

  • This rotor is designed for use with Shimano hydraulic disc brake systems, particularly those featuring Ice Tech pads for optimal performance.
  • Compatible with standard bicycle forks and frames featuring Post Mount or International Standard (IS) mounts via adapters if necessary.
  • Available in 203mm diameter; ensure your frame and fork have clearance for this size.

Care:

  • Clean the rotor surface regularly with isopropyl alcohol and a clean cloth to remove any contaminants or brake fluid.
  • Avoid touching the rotor surface with bare hands, as oils can affect braking performance.
  • Periodically check the rotor for any signs of damage, warping, or excessive wear. Replace if necessary.

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