What is the stock gearing? With reverse how tall can you go? Is the chain a 15 wide?

Skydog

I put a xp cover on my xr
so I can run any gear
stock top gear is the same for all xr's 24 tooth
I have seen a bottom as small as 36 tooth
http://www.wahlracing.com/product.php?cat=...productid=20359
chain is 104 x13w stock
gades uses 45 and shorts use 43 bottom stock

Cool thank you you guys have a formula for top speed numbers? Would like about 140MPH...

Thank you Skydog

here is one
http://snowmobile.off-road.com/snowmobile/...l.jsp?id=195544

Thank you! Do you know what these are? Center Distance in inches, drive sprockets number of cogs?

if you enter c to c the program will give you chain size
drive sprocket is the sprocket that drives the track
this program will not work with stock 2.86 pitch track
it is for the standard 2.52 pitch
this program may be better for you
http://www.turboaddictionparts.com/catalog...calculator.html

WOW Thank you buddy! Number Of Driver Teeth is that 9?

Thank you Skydog