HU 1900 SPLINE® Built to last. Electric touring bikes often have a high system weight, placing considerable stress on the wheel and its components, which can damage the rim and spokes over time. The HU 1900 SPLINE was designed and tested to prevent this risk. Certified for a maximum system weight of 180 kg, this e-bike-specific 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.