Using this electric bike is a breeze. Just turn on the power, adjust the gears as needed with the Shimano 9 - speed gears, and start pedaling. The Bosch third - generation power system will give you extra assistance. When riding on rough roads, the 100mm suspension fork will help you have a smooth ride. For safety, use the Shimano hydraulic disc brakes to stop in time. When not in use, make sure to park it using the kickstand. To maintain the bike, keep the internally routed cables clean. Check the battery regularly, and charge it when the power is low. Also, make sure to clean the mudguards and the frame after riding in muddy conditions. With Cube’s Size Split, if you feel the fit is not right, you can consult the dealer to find a more suitable size.