The Shimano Steps RT-EM300 Centre-Lock disc brake rotor delivers reliable stopping power across all riding conditions, engineered specifically for eBike speed sensor systems.
The CENTER LOCK mounting system streamlines installation and removal with its intuitive spine mount and lock ring design, saving you time during maintenance. Compatible with resin brake pads only. Built for consistent performance on demanding terrain.
Features
- CENTER LOCK disc brake system
- Wide type disc brake rotor
- Lockring type with internal (Internal Serration) and external (External Serration) toothing
- Including magnet for SHIMANO STEPS speed sensor SM-DUE11
- Not compatible with metal brake pad
- Recommended Brake kit: MT520/MT500/MT420/MT400
Specification
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Use: E-Bike
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Group: SHIMANO STEPS
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Model: RT-EM300
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Disc mount: Centre-Lock
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Pad compatibility: Resin
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Lockring: With internal and external tool holder
Size
- 160mm intern
- 180mm intern
- 203mm intern
Compatibility
- BR-M9100*
- BR-M9120
- BR-M9110-R**
- BR-M9000
- BR-M9020
- BR-M8100
- BR-M8120
- BR-M8110-R*
- BR-M8000
- BR-M8020
- BR-M7100
- BR-M7120
- BR-M7110-R*
- BR-M7000
- BR-M6100
- BR-M6120
- BR-M6000
- BR-MT520
- BR-MT420
- BR-M820
- BR-M640
- BR-S7000
- BR-S700
- BR-R9270**
- BR-R9170*
- BR-R8170*
- BR-R8070*
- BR-R7070*
- BR-4770*
- BR-RS805*
- BR-R785*
- BR-RS785*
- BR-RS505*
- BR-RS405*
- BR-RX810*
- BR-RX400*
* not compatible with 203mm** only compatible with 160mm
Material
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Rotor: Stainless steel
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Lockring: Steel
Contents
- 1 x Shimano STEPS RT-EM300 Centre Lock Disc Rotor
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
