The U 663 is a versatile, durable rim that easily handles larger loads. This rim is the ideal solution for urban e-bikes, which are suitable for longer distances thanks to their batteries. Available in four different sizes: 20", 26", 27.5", and 29". This range optimally meets the diverse demands of the urban bike world. The reinforced rim design is suitable for a system weight of up to 180 kg. Taking kids to school? Doing the weekly grocery shopping? No problem with this durable rim!.