City

The Quartz It is one of the most important bikes in Deruiz history – and 2026 marks the beginning of a new chapter. After countless kilometers, numerous user reviews, and the best ADAC rating among all step-through bikes tested in 2024, the Quartz Now completely reimagined. The result: a significantly lighter frame, hydraulic disc brakes, a new torque sensor, an optimized design, and a fully app-compatible motor platform. More control. More comfort. More safety. More Quartz.

The Quartz M stands for urbanThe Deruiz agility – now in its technically revised version. Hydraulic disc brakes, a precise torque sensor, and full integration into the Deruiz app ecosystem bring this model up to date. The sporty trapezoidal frame, the 48V rear motor with 55 Nm of torque, and the 483Wh battery form the foundation for a lightweight, agile city bike that delivers on every day. Available in Metallic Grey.