This one-piece rotor is optimized for e-bikes. Thanks to the additional connecting ring it is particularly stiff and vibration-resistant: the ideal all-rounder with centerlock mount – whether on a city bike, trail bike or e-bike. E-Bike optimized. Equipped with a centerlock mount for corresponding hubs, Center Lock with lockring for thru axle (tool opening engagement) Compatible with: complete MT-Family Warranty:MAGURA offers a five-year leak proof guarantee for all MAGURA brake masters and brake calipers / cylinders, provided they are exclusively equipped with original MAGURA Spare Parts.