PDA

View Full Version : 400ex gearing



da 400ex
01-24-2010, 09:45 PM
whats do u guys think the best gearing for a 400ex will b for midrange and top end speed.. its already geared 14/36t.. thinkin of movin up to my 15t in the front.. so it will b 15/36! but i dont wanna change em if ima lose to much on take off.. i also have stage 3 cam, 86mm bore pistion, mild port polish, whtie bros slip on, amr stage 2 rev box, k&n air filter (air lid off), jet kit.

KISSmyACE
01-24-2010, 10:12 PM
I am 13/39 with 18" tires in the rear and its great

2001trx400ex
01-25-2010, 11:46 AM
I have mine geared with 36 in the rear and 14 in the front, but if you want more top speed and more mid range speed, i would sudgest (15/36)!!!!! or you can do 15/38 for more top speed than anything.

da 400ex
01-25-2010, 11:52 AM
ya mine is 14/46 atm and i was just trying to change the front but i cant the midle bolt out from the sprocket any suggestions?

da 400ex
01-25-2010, 11:54 AM
i mean 14/36 lol my bad

Miami_Vice454
01-25-2010, 01:48 PM
I have mine geared with 36 in the rear and 14 in the front, but if you want more top speed and more mid range speed, i would sudgest (15/36)!!!!! or you can do 15/38 for more top speed than anything.

15/36 is more top end than 15/38. for more top end you go up in front and down in back.


I have mine geared with 36 in the rear and 14 in the front, but if you want more top speed and more mid range speed, i would sudgest (15/36)!!!!! or you can do 15/38 for more top speed than anything.

middle bolt? im pretty sure there are 2 bolts that hold a flange that holds the sprocket on

steve181
01-25-2010, 02:12 PM
i have a 440ex and a 02 400ex thats piped

400 has 20's and the 440 has 18's

both 15/38 ( stock)

the 440 will pull the 400 from a dig/roll
and also slam it top speed

ive always heard good things about 14/36 on 400's

Ryan'07400ex
01-25-2010, 05:31 PM
Originally posted by KISSmyACE
I am 13/39 with 18" tires in the rear and its great

Thats got to be a monster on take off. What gear do you use for trail riding?

da 400ex
01-25-2010, 05:50 PM
14/46 on trailriding but i switched to my 15t today for top end

2001trx400ex
01-26-2010, 12:00 PM
Originally posted by da 400ex
i mean 14/36 lol my bad
i was about to say 14/46 holy crap how long does it take to get outta 1st gear lol!

camaromitch
01-26-2010, 01:54 PM
Ha ha...All I can hear is a pulling tractor taking off when I try to imagine that lol

da 400ex
01-26-2010, 03:29 PM
lol ya that was a typo