I was wondering what size front sprocket is recommended when running 20's. 13 or 14? Thanks in advance

 

The stock 86/87 had 13/39 gearing and the 88/89's had 13/38.
A 14 tooth on the front with 20's would go about 80!
ERIC

 

what kind of riding and where. when i was stock i would go down 1 tooth when using paddles.

 

I've got a 15/36 combo for my big bore ATC350Rpv. I'll let you know how it works out in the next couple of weeks. I might throw some 22 inch tires on the back and see if it will go 100!

The stock gearing on your machine would be a 13/39. If you are going to run 20 inch tires, which happen to be the stock size, I would stay with that. If you're running sand drop 1 tooth off the front or 3 off the rear. The 1 tooth off the front will cost you a lot less and will likely not affect the narrow range of chain adjustment as much. If your current sprockets are hatched, remember that a new chain and sprockets replaced as a set usually give you much more life if properly maintained. Also, even the cheapest $40 Oring chain will outlast the best non-oring chain(unless you remove it after every ride and soak it in oil, which is a PintheA and not worth time).

Happy roosting [img]i/expressions/face-icon-small-smile.gif[/img]