I wish I had read and listened to all the negative reviews. I bought an electric bike last year and the instructions don't give really good maintenance info and it's a nightmare trying to figure out what it takes because electric bikes don't look like regular bikes. I had to look at the tube just to figure out how to remove the rear tire and there was NOTHING mentioned about a tube with a longer stem so I ordered a puncture proof mountain bike tube but found the air valve was too short so ordered I use a valve expander. I've looked at the extension types and they all seem to have the same gasket poor seating issue. I just wish there were lists of things like batteries and cameras under electric bikes. It's crazy that you can buy e-bikes but things like the battery have to be imported from China. I don't have a car and there isn't a bike shop nearby (and I'm 67), but I'm sure others look to reviews to find out what and where to get replacements.