I just purchased my first ebike a Cube Kathmandu with the nyon display and step thru frame. I am a life long rider and own 4 other bikes. I have always done my own maintenance and have a shop with most of the tools i need to do bike repairs. I read online reviews and test drove the cube before making my purchase. I still love the bike, after i week and 200k of riding, but I have noticed that the manufacturer has little interest in supporting the DIY bike mechanic. the documentation with my bike is a mess. several bike models combined into one book in several languages. i.e. nothing specific to help a mechanic. I wanted to order some simple replacement parts for my bike to have on hand during road trips. a spare chain, extra brake pads, a derailleur hanger. I contacted cube about a parts manual, and was told that I needed to contact the dealer for any support. I finally was able to identify all my spare part needs by removing, inspecting and getting the stamped manufacturers #, or in the case of the derailleur hanger matching it with photographs from an online store. My experience with Cube is completely different then what i have experienced with Canyon or Cannondale.