JUST WANT TO KNOW WHICH SPROCKET COMBINATION I SHOULD USE ON A DESERT RACE? MOST OF THE TRACK IS FLAT AND LOTS OF STRAIGHT AWAYS. ALSO WHAT SIZE CHAIN DO I NEED IF I CHANGE MY SPROKETS? OR DO I STAY WITH THE STOKE ONES? THANKS FOR THE HELP.

 

if your bik is modified at all with some clutch work then go to a 15t front w/22 rear u will need a new chain though. but if its alot of long straights then u will pick up alot of top speed.

 

Go up 5 teeth on a front sprocket eh?? I don't think thats correct.
Lets just say your bike is stock. Stock LT's are a low end machine.I agree that a bigger front can and should be used. Going from a 10 to a 12 front would be a big jump, but I feel it may handle it.
If your machine is modded. Modding will pick up rpm's and decrease bottom end. Stock gearing is usually used with smaller tires.
I switch to #428 sprockets and use #40 chain. (they fit fine)There are 1/2 links for #40 chain and it seems to last fine.
You would then need 13/14 front and a 26 rear for sprockets.

 

the reason i said that is i have a fully ported motor with a 20 mil carb and a fully modded clutch. i bought a 12t front but could not make a chain to make it fit. so i left the stock one on it. the first moto i thought she was going to blow the motor up, we were on a big track so she was tapped out. between moto's a dad that his kids back up bike is a lt gaveme a 15t and chain and i put that on there and she was sleeping on the start but still pulled a second place holeshot, mainly cause the start was so long and she could caring that much speed into the corner.

 

what gearing do you guys think on a stock Lt used at the dunes?

 

For a modified bike: yfz450bb07 is an awsome combination, she was flyin' in the second moto. For a stock bike: like you're talking about, listen to LT80.

 

THIS IS FOR A STOCK LT 80. IF I CHANGE THE FRONT SPROCKET FROM 10 TO 12 TEETH. DO I NEED TO CHANGE THE REAR ALSO? IF I DO WHAT SIZE DO I NEED FOR THE REAR? WILL CHANGNG THE SPROCKETS MAKE A BIG DIFERENCE ON TAKE OFF'S? HOW MANY LINKS DOES THE CHAIN HAVE TO HAVE WITH THIS COMBINATION? THANKS FOR THE HELP