i need some advice on gearing

[rootcory]

Ok so I'm building a full suspension cart and I'm a little messed up on gearing

The Kart is a carter hammerhead style two seater the engine is a 500 cc arctic cat fan cooled I decided to go with a twin jackshaft setup with a 10t to a 45 t and another 10t to a 45t sprocket on the axle thus giving me a 9 to 1 ratio? Is this to much what would u guyss reccomend?
For a ratio?

 

[dpaxson]

that's not a 9:1 that's a 20.25:1 ratio. you multiply jackshaft ratios. and ya that's too low

 

[dpaxson]

plus you have to multiply that ratio by the initial ratio of the sled cvt. unless you wanna drive up walls that's gonna be too low

 

[rootcory]

huh so now what cause its already built?

So what should I b running?

 

[HellSpawn]

6:1, but considering 2strokes wind out much further, you could go 7 or 8:1 for a really snappy low end. And still have a decent top end.

 

[rootcory]

So how do I figure out the sprockets I need? I really don't want to change my axle sprocket it is a 45t now and I just got it custom made NOT CHEAP

 

[Doc Sprocket]

You might have jumped the gun by ordering up a custom sprocket before crunching the numbers...
It would help to have some info.
1)Max RPM?
2)Tire Diameter
3)Desired top speed
4)CVT ratios (top, mainly)

 

[rootcory]

You might have jumped the gun by ordering up a custom sprocket before crunching the numbers...
It would help to have some info.
1)Max RPM?
2)Tire Diameter
3)Desired top speed
4)CVT ratios (top, mainly)

I ordered what I did because I was told by a member on here to add the tth3

4.5 and 4.5 together not multiply them !

8000 rpm

22 inch tires

The cvt is 1 to 1

I would like it to be snappy in the low end with a top speed around 50 to 60?

Right now. It pops wheelies!!!!

 

[Kaptain Krunch]

8 or 9:1 would be perfect. change the jackshaft sprocket from a 45, to an 18-20t.

 

[devino246]

Whats the lowest ratio of your CVT? Right now your top speed is 26mph.

 

[Kaptain Krunch]

Whats the lowest ratio of your CVT? Right now your top speed is 26mph.

lowest ratio doesnt matter much. as long as you know it shifts out to 1:1.