Detailed Specifications:
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Brand: Shimano
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Model: RT-EM910
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Rotor Diameter: 180mm
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Mounting Type: Center Lock (without lockring)
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Rotor Thickness: ~1.75mm
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Construction: Stainless steel braking surface with aluminum core and spider
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Technology: Ice Technologies FREEZA (cooling fins for superior heat dissipation)
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E-Bike Integration: Includes magnet bracket for Shimano STEPS speed sensor system
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Pad Compatibility: Resin or metal pads
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Weight: ~150–170g (approx, size dependent)
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Color: Silver braking surface with black/aluminum spider
Additional Features:
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Designed specifically for e-bikes with Shimano STEPS systems, handling the higher torque and heat loads of e-MTB and trekking applications.
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FREEZA technology combines a stainless-steel outer ring with an aluminum core and cooling fins to keep braking surfaces cooler under sustained use.
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Integrated magnet eliminates the need for separate speed sensor hardware, ensuring compatibility with Shimano e-bike systems.
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Center Lock mounting makes installation fast and secure compared to 6-bolt rotors.
Important Usage Notes:
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Requires a Center Lock hub or an adapter (not included).
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Check frame and fork clearance to ensure 180mm rotor size is supported.
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Designed for use with Shimano hydraulic disc brakes; pad choice (resin or metal) may affect noise and heat characteristics.
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Intended for e-bike use, but also fully compatible with non-motorized bikes using Shimano Center Lock hubs.
Riding Impressions:
The Shimano RT-EM910 in 180mm offers strong, fade-resistant braking even on long descents or under the higher loads of e-MTB use. Riders benefit from ICE FREEZA cooling, which keeps braking performance consistent while extending pad life. The integrated speed sensor magnet ensures a seamless fit with Shimano STEPS e-bike drivetrains.
Disclosure:
This listing includes ONLY the 180mm rotor. Other accessories are not included. This is a genuine Shimano product, covered by the manufacturer’s warranty for the original owner. Please retain your purchase invoice for warranty claims.
