EMC is our E-Mountain Casing. Thanks to a reinforced ply of woven fabric and an additional layer of puncture protection, Tires with our EMC construction are built to withstand the higher loads on the tire because of the heavier bike and the higher speeds and torque at the rear tire. Tires with our EMC are ECE-R75 certified and approved for usage on e-bikes up to 50 km/h.