Made from aluminium with unrivalled stability and safety, the QUADRIGA frame forms the very backbone of a high-quality, comfortable e-bike for many models. The high-torque Bosch Performance Line CX (Smart System) motor delivers powerful thrust in the mountains and on unpaved terrain. The maximum torque of 85 Nm enables powerful acceleration even at a low pedalling frequency, useful after going around obstacles, for example. Integrated into the slender down tube, the 750 Wh battery provides adequate power for long ranges. Even the smallest Wave frame has room for the large battery, which can be easily removed and inserted from the side. Controlled via the LED remote, the keyless Kiox 300 colour display shows data such as range, trip distance, riding time and riding mode. The continuously variable ENVIOLO automatic shifting system ensures smooth gear changes, even under heavy loads. The robust, rustproof GATES® belt drive is whisper-quiet. Both components are virtually maintenance-free since wear is reduced to a minimum. The suspension fork and lowerable suspension seat post ensure comfort; the PRO BELT AUTOMATIC is extremely safe with its disc brakes and ultra-bright 100-lux headlight.