When will I receive my order?
Parts & Accessories orders that are placed before 1 pm are estimated to be delivered the next working day. More delivery info here.
For example, if you place an order before 1 pm on Wednesday, we'll aim to get this out that same day for estimated delivery on Thursday.
If, for example, you place your order after 1 pm on a Friday, or at the weekend, we'll aim to dispatch on Monday for estimated delivery on Tuesday.
Do you deliver outside of the UK?
We deliver to over 150 countries worldwide. Please add any items you require to the basket; the shipping to your destination is calculated at the checkout.
You can learn more about delivery information here. We have a separate page with estimated international delivery times.
Due to restrictions, there are some items we can't deliver internationally (battery packs and aerosols). These items are clearly stated on each product page.
Why can't I purchase some items?
Some certain products we hold exclusively to support our bike customers (those who purchase their bike directly from us).
When you purchase your bike directly from us, your account is unlocked for quick access to order these spares, should you need them.
Purchased from us, but don't see the option to 'Add to Cart'? Please get in touch and our team will be able to assist.
Description
The Shimano SM-RT66 is a durable, performance-focused brake rotor designed for demanding applications, positioned at the SLX/ZEE component level. This specific version measures 203mm in diameter, offering powerful stopping force suitable for downhill and enduro riding. Unlike Center Lock models, the SM-RT66 uses the traditional 6-bolt mounting system, ensuring a secure fit on compatible hubs. Its robust construction provides reliable heat management and excellent modulation, delivering consistent performance and bite in all conditions.
Features:
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Robust Performance Level: Classified at the SLX/ZEE level, this rotor is engineered for durability and reliable performance in aggressive mountain biking and demanding conditions.
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Optimal 203mm Diameter: The substantial 203mm size provides maximum stopping leverage and increased heat capacity, ideal for sustained braking on long descents.
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Durable Two-Piece Construction: Features a steel braking surface mounted to an aluminium spider for an excellent balance of heat management, stiffness, and reduced weight, though it lacks the sophisticated three-layer composite of Ice-Tech FREEZA.
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Reliable Heat Management: While not featuring FREEZA fins, the rotor design and large diameter effectively dissipate heat to maintain consistent stopping power and reduce the risk of fade during heavy use.
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Enhanced Service Life and Quiet Operation: The two-piece structure helps maintain thermal stability, which contributes to longer pad life and aids in reducing braking noise compared to basic rotors.
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Secure 6-Bolt Mounting: Utilizes the universally compatible 6-bolt mounting interface, ensuring a strong, secure, and straightforward installation onto any compatible hub.
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Optimized Braking Track: The precision-cut braking surface is designed to improve pad-clearing capability in muddy conditions and promotes effective cooling for dependable performance.
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Lightweight, Rigid Support: An aluminium alloy spider provides a highly rigid and lightweight foundation, securely supporting the stainless steel braking track.
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Consistent Braking Finish: The braking track is machined for a smooth, high-contact surface, ensuring excellent and predictable braking feel.
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Simplified Sizing: This rotor is specifically offered here in the 203mm size, utilizing the standard 6-bolt attachment system.
Next business day UK mainland delivery on parts & accessories
NEXT DAY DELIVERY
Parts & accessories ordered with a bike will arrive fitted where possible
WE FIT PARTS
Parts & accessories dispatched same day if ordered before 1pm
SAME DAY DISPATCH
We deliver electric bike accessories to over 150 countries worldwide
WORLDWIDE DELIVERY