Shimano EM810 Disc Rotor

While it fits standard Center Lock hubs, this rotor is specifically engineered for the higher weight and speed demands of e-bikes. It includes an integrated magnet for speed sensors, which may be unnecessary on a standard bike, though it will function perfectly fine if you have the correct brake caliper clearance.

Yes, the EM810 is fully compatible with both resin and metal brake pads. The stainless steel and aluminum sandwich construction is durable enough to handle the abrasive nature of metal pads while providing excellent bite for resin compounds.

The radiator fins are part of Shimano's Ice-Tech cooling technology. They significantly increase the surface area to dissipate heat faster, which prevents brake fade during long descents and helps extend the lifespan of your brake pads by keeping operating temperatures lower.

Because this uses a Center Lock interface, you will need a standard external bottom bracket tool or a cassette lockring tool to tighten the lockring. It is a straightforward installation, but ensure you have the correct tool size before starting.

This rotor is optimized for Shimano's 4-piston e-bike specific calipers, specifically the XTR BR-M9120, Deore XT BR-M8120, and SLX BR-M7120. Using it with these systems ensures the best rotor-to-pad contact and braking performance.