how to increase top end

[mad4106]

i raced one of my buddies yesterday he had a honda trx 700xx i could keep up with him but when he gets to 5th gear he pulls away any suggestions wat sproket size should i get? I also have a 450r carb which i havent installed yet!

[CJM]

450r carb will help, a larger front sprocket will give you speed where a smaller rear sprocket gives speed.

37T rear with a 15T front will give you about 3-4mph faster, a 16T front and 38T rear will get you about 5-6mph more.

But honestly he has 300ccs more than you do and just makes more power. You will not beat him.

[honda400ex2003]

if you have an 04- then you can go 16 tooth up front or 36,37 rear

new ones can go to a 15 or a 38

assuming you are running stock sprockets now.

http://home.earthlink.net/~gellett/400ex.htm

you can experiment with that, it will get you pretty close.

steve

[mad4106]

Thanks guys! where can i get these sprockets from?

[finsteratv]

Originally posted by mad4106
Thanks guys! where can i get these sprockets from?
ebay, pretty much any place that sells atv parts! and btw i'd reccomend steel sprockets due to longevity.