Hi there, I have purchased the Giant Fathom EBIKE 500w . I mostly bike on road up a steep hill and back . I have had a few times with the chain coming off when coming down hill.. But yesterday it snapped. I went to replace the chain but the ChainRing has a very bent tooth. This has happened to a friend of mine. I need the bike and wondered if anyone knows where I can get a chain ring preferably stronger , because if I sent it under guarantee, will take months. I live in Gibraltar ... I can order on line. It so annoying