HU 1900 SPLINE® Built to last. Electric touring bikes often have a high system weight, which places considerable stress on the wheel and its components—stress that, over time, can damage the rim and spokes. The HU 1900 SPLINE was designed and tested to prevent this risk. Certified for a maximum system weight of 180 kg, this special e-bike wheel easily handles heavy loads. Built to last thanks to its thicker cross-section and reinforced 2.34 mm spokes, this model is also equipped with the 370 hub, featuring the legendary 18-tooth Ratchet System. The wheel owes its reliability to the quality of its assembly. All our wheels are hand-built by qualified professional builders, ensuring consistent residual spoke tension under all conditions.