Need help w/ new sprockets

[tx07400ex]

Well after nearly 2 years of hard riding my sprockets are almost completly gone. I want to go to a lower gear i think but im not sure which sizes to get. I know this is not the actual gearing im just using it as a metaphor because i understand truck gearing better. Just for my understanding im gonna call the stock sprockets a 3.73 gear. I want to go to something with more acceleration (4.10), what size sprockets should i go with and if anyone has them and can give me an idea about how the feel changes it would be a big help thanks:D

drop a tooth in the front or go up in the back for more acceleration

[tx07400ex]

I thought that was the right way i just couldnt remember for sure. I think my cousin told me a few years ago 1 front tooth is about the same as 3 rear. How much difference does dropping the front tooth down 1 really do?

[BlasterEaten250]

I added 2 teeth on the back and you can definately notice the difference. And yes 1 tooth in the front is equal to 3 in the back.

[mrtaffy]

i went one down in the front and its like a neck snapper now. you lose top speed. which sucks. im goin a tooth up in the back now. if u think ur machine was a wheelie monster already it gets straight nasty. it will want to pull the front end up easy all the way into 4th.

I love mine since I dropped a tooth in the front. You dont lose much top end as you think. I can still hang with my buddy's z on a long *** straight away. But 1st and 2nd have alot more low end and accelerate quicker. Its good especially coming out of turns and such.

[sprayedgt]

You won't believe the difference you get. Like going from a 2.73 to a 4.30. If you ride in fast, aggressive trails you can stay in 3rd most of the time. When I dropped a tooth on mine, 5th is now usable on the service roads where I ride. You nail it and it'll pull like crazy. You love it.

what he said ^^^ I hardly ever get out of 3rd in fast trails. Same for riding tracks. Unless theres a long straight away of course.

[scuzz]

Dropping a tooth in the front made it easier to climb technical trails and whatnot it also helped keep me where I wanted to be (in the RPM range) with paddle tires on.

[tx07400ex]

thanks guys i ride mostly with 4x4s so i can lose even 10mph off my top end and still smoke almost all of them. i think im gonna try dropping one front tooth and see how i like it i found a relativly cheap set to try and make sure i like the gearing before i shell out the cash for sidewinders

[racerdan24]

i just did it 2 months ago and was verryyyyy impressed....running 13 front and 39 rear and noticed it right away...very happy..

[dave4881]

Isn't 15 / 38 stock?

I got an 05 so stock mine was 14

[racerdan24]

Stock on the 08 i have is 14/39...i dont think the 07 was any different

[tx07400ex]

15/38 was stock until 04, 05 and up the went with 14/39

[dave4881]

And I just read that they have changed the stock front sprocket on the 08 & 09's to a 13-tooth. I notice that the new ones are heavier by about 25 or 30 lbs.

[ae13291]

so my 02 400ex is 15 tooth front sproket??

[sprayedgt]

The new ones are rated as "ready to ride". That meaning all fluids full and full tank of gas.