Shimano Disc Rotor SM-RT64 220mm Centre Lock – External Lockring
Powerful, consistent braking for mountain bikes and demanding riding conditions.
What Is It?
The Shimano SM-RT64 220mm disc brake rotor is a durable, two-piece rotor designed for compatible hydraulic disc brake systems. It features a stainless-steel braking surface and an aluminium centre, combining dependable braking performance with a rigid, lightweight design.
The Centre Lock mounting system uses a splined interface and an external-tooth lockring for secure installation and convenient maintenance. Shimano states that the 220mm rotor provides approximately 10% more stopping power than a 203mm rotor.
Key Features
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220mm rotor diameter: Provides increased braking leverage and stopping power.
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Centre Lock mounting: Enables secure installation using a splined hub interface.
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External lockring: Designed for installation and removal with a compatible external-spline tool.
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Two-piece construction: Stainless-steel braking track with an aluminium centre.
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Resin and metallic pad compatibility: Supports compatible brake pad compounds.
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Consistent braking performance: Designed for reliable braking across varied riding conditions.
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Specifications
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Specification
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Details
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Brand
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Shimano
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Model
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SM-RT64
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Product type
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Disc brake rotor
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Rotor diameter
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220mm
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Mounting system
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Centre Lock
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Lockring type
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External serration
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Rotor construction
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Two-piece
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Braking surface
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Stainless steel
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Centre material
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Aluminium
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Brake pad compatibility
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Resin and metallic, subject to brake-system restrictions
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Package contents
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Rotor and lockring, depending on supplied variant
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Benefits
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Offers greater braking leverage than smaller rotors.
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Helps deliver consistent stopping power on steep descents.
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Provides a durable braking surface for regular trail riding.
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Makes rotor installation and removal straightforward with the correct tools.
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Supports different pad compounds for compatible brake systems.
Best Suited For
Mountain bikers and riders seeking a large-diameter rotor for powerful braking, particularly on steep trails, demanding descents and heavier bikes.
