I purchaced a Monsoon (Generic) brand 90cc ATV. Basically a duplicate of the E-ton. This new ATV is geared way too high and lacks low end power, so I want to change the driven (REAR) sprocket to a larger one. Currently it has a 420/28 (I'm assuming that the 420 is the chain size and the 28 is the tooth count)with a 3 hole bolt pattern. Any advice on what size I should go to (say a 35 tooth???) or where I can get a replacement. The manufacturer has the stock replacement only and I have not had luck at other ATV dealers.[img]i/expressions/face-icon-small-frown.gif[/img]

 

I think your best bet would be to take the stock sprocket off, take it to a dealer, and try to match up the bolt pattern with a sprocket from something else, maybe an XR80, or older CT70. Good Luck.