U 663 A durable rim, available in a wide range of configurations, for reliable load carrying. This tough rim stands up to the high stresses of city e-bikes, whose batteries allow long distances to be covered. Available in four different sizes: 20", 26", 27.5" and 29", to suit every configuration of modern city bikes. Finally, the reinforced rim profile supports a total system weight of up to 180 kg. Whether you are taking your children to school or doing your shopping, you can do it all with this rim built to last!