You mean speedbump. If he hits it, avoid the battery pack of at all possible. As for the repairs, make him look for the parts at a pick n pull (junk yard) and only order online (amazon) as a last resort. http://www.usedautopartsdealers.com/ can help locate parts at local yards (but the hunt in person can be half the fun). Not only will he learn how to fix the part locally, he'll get some sweat equity into the project. There used to be a good yard between Denver and Fort Collins on the frontage road. I don't recall if it was there when i was on Colorado last or not. They are disappearing these days.