To optimize the engine power, please follow the following instructions:1. The engine of your pedelec is a pedal support and should be used as such. Avoid moving the bike exclusively via motor support in order to avoid overheating the engine and/or the battery.2. The engine, like all other components, is splash -proof and should not be treated with too much moisture. In this respect, high -pressure cleaners or washes are foreseeable. A damp cloth is sufficient for cleaning.