okay i want a little more top end speed i have a t-4 slip on and k&n and jet right now i want to put 18 inch holeshots in the back. and i want to change the sprocket to get more top end speed i need to kno what size sprocket i should get with 18 inch tires to get more top end speed. or should i change both sprockets any info would be helpful thanx.

 

With smaller tires one tooth bigger front sprocket would probly get you back to stock gearing. I would buy a bigger front sprocked and a smaller rear sprocket and use one or the other or both and see what is the best combination.

 

well i decided to stay with my stock 20s. so what size sprocket do i need to get more top speed

 

I agree with farmstud, bigger front , smaller rear will make it go faster