400ex Sprockets

[jdonahue400ex]

I have a 02 400ex and I mostly ride trails. I was going to get a new front and rear sprocket. But what should I get? I was thinking maybe a 14 tooth front and 36 tooth rear. Please give me some suggestions.

Joe

[EPDP99]

by doing that it will give you barely and i mean barely more top end. kind of contradicts itself. drop in front is more bottom end. drop in rear is more top end. 3 rear teeth =1 front tooth. i ride trails and i went to a 14 and kept the 38 rear.

[cals400ex]

actually, i think you will gain a tad bit more low end power. for every 1 tooth changed on the front, a 2.5 tooth change on the rear is the same.


what kind of riding you looking to do? are you more concerned with top end or low end?

[RIDER11X]

I ran the 14T front and 38T rear, and got beat in a drag race by a piped 300ex!!!!!!! Don't do it! It makes you slower, even though it feels quicker. And you are always shifting.
I ride with a friend with a Raptor, and got tired of it eating me up in open areas, and went to a 15T front (Stock) and 36T rear.........Wow. Top speed was awesome! Less frequent shifting, but less able to lug along at low speeds.

Now, I run 15/38 stock gearing, and keep a 36T sprocket on the shelf for those occaisional fireroad rides...........Or times that someone needs passed.:devil: When my 426 is built, it may stay on there all the time if my torque numbers are good enough.:cool:

[jdonahue400ex]

If I did keep the stock 15t front and get a 36t rear you said it would help with top end but will it take away much from the low end, and would it be good for trail riding or should I just keep the stock gearing?

[cals400ex]

for trail riding, stay stock or go lower. for drag racing in the upper gears, stay stock or go higher.

[Rdhanded2]

Originally posted by cals400ex
for trail riding, stay stock or go lower. for drag racing in the upper gears, stay stock or go higher.

I trail ride mostly, and I love my 14t. I love being able to pop a wheelie in 4th without using the clutch, and it is great for logs, hills, etc.

[Plante400]

What are the stock tooth numbers for front and back stock sprockets..

i am not at my dads so i cant look myself and i am in the middle of ordering parts

also what is a good company do go with??

qucik replys would be Deeply appreciated.
Thanks!

[Kurt Glore]

I run 14/38 for XC racing. Works great for me with 20x11x9 Razr2's on the rear.

[White400]

I ride trails and I run a 14/39. The reason I say that is you get the benefit of a little more torque by running the 14T but it don't totally kill the top end by running the 39T

[dpizz450]

if you are not really worried about top end, i'd say go 13t front. gives you quite a bit more bottom end. i love my 13t.

[shamisc]

Originally posted by YZrida
if you are not really worried about top end, i'd say go 13t front. gives you quite a bit more bottom end. i love my 13t.

I'm pretty sure he's talking about a 400EX. The gear ratios on your bike are totally different. 13T would be way too low for any 400ex, unless you were pulling up stumps! BTW, I run 14-34 sprockets on my 4?? !:devil: