DT Swiss HG 1800 Spline Often, the adventure begins where the road ends. An e-gravel bike can support you on your journey there and beyond. With the HG 1800 Spline wheels, you can ride back and forth without worry. The robust rim, combined with reinforced components, is perfectly suited for higher system weights (up to 140 kg) and gravel riding. The internal width supports tires up to 50 mm wide perfectly, making your ride over gravel feel like a walk in the park. The newly designed hub conceals the Ratchet LN freehub system at its core, ensuring reliable power transfer. This new wheelset has been developed to support you on extended adventures on gravel paths. The 370 Hybrid Spline hub has been redesigned to withstand higher torque from motors in e-road bikes. A higher system weight means greater braking forces are needed to slow down, while the additional power from the battery results in higher drive torque during acceleration. To meet these increased demands, the hub body has been reinforced accordingly. Additionally, the freehub body has been updated with our Ratchet LN freehub system. Even our entry-level hybrid wheels can now rely on the reliability and simultaneous engagement of the Ratchet system. Without compromising their aerodynamic advantages, the hybrid versions of the new DT aero® hybrid spokes feature a reinforced spoke head of 2.15 mm. This is offered as a solution for higher dynamic loads due to the increased system weight, which makes the spoke head a potential weak point. Furthermore, the increased thickness of the spokes improves their resistance to fatigue that occurs during the rotation of the wheel when each spoke is loaded and unloaded.