Hi All, Im totally new to the pocket bike world and just bought a ZEI mini quad on ebay 49cc 2 stroke for my son, I am trying to find a larger rear sprocket around a 76-80 tooth, I bought one and another chain from pocketbikeparts.com but it is the wrong one. I bought a 25H chain and sprocket but my chain is much larger - any ideas where I might look or how do I tell what size of chain I have ?
Their is nothing for that larger chain except larger front pinions, and you don't want that, what you need to do is swap every thing out to the 25 chain size.