[Gearing?] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

Gearing?
(Click here to view the original thread with full colors/images)

Posted by: stocktires

What gearing is everyone running? Post you motor, riding style, and gearing.

CRF450
MX type
14/38

I'm not sure is I want to go to a 37 tooth rear or not. Maybe it will stall worse, idk.

Posted by: HouserCRF450

crf 450 14/38 mx, I'd just try a 37 on it and see how it runs, I find I don't tend to go lower then 3rd gear with this gearing when racing and 2nd gear starts easy.

Posted by: protraxrptr17

KTM525SX (4 speed trans) 18 inch tires
MX
13/38

I start in first most of the time. In arenas, it's way too tall. I run the whole race in first, and it's a little bit too tall for the whoops. I'm gonna try a 12/39 for that this season. Going by your sprockets, CRF's must be geared quite a bit lower than KTMs.

Posted by: josborn

yzf 426
14/38 mx

I just tried a 15/39 and its all bad, just can't get comfortable jumping 50-60 jumps in 2nd gear. Going back to the 14t front.

Has anyone else tried a 15t on the yzf426?

Posted by: ss440ex

YZ426 mx
18 tires
220 lb rider

14/37 sprockets

Posted by: josborn

I floated between 14/37 and 14/38 for awhile, but I had 18" tires. I weigh 220 also. Looks like I'm headed back that way.

Posted by: slow

yz426
13/39 with 18in tires. (1st gear still feals a little tall)
I ride on a mx/sx type and open fields.
Im thinking of going to 11/33 now.
About 135lbs

Posted by: chronicareo

what should i run on a swap im doing its a kx250 newer motor in a stock 400ex roller.....should i keep both gearings stock??

Posted by: slow

quote:
Originally posted by chronicareo
what should i run on a swap im doing its a kx250 newer motor in a stock 400ex roller.....should i keep both gearings stock??

Up to you. Gear it the way you like it if it doesn't feel right.

Posted by: stocktires

quote:
Originally posted by chronicareo
what should i run on a swap im doing its a kx250 newer motor in a stock 400ex roller.....should i keep both gearings stock??

Stock KX250 gearing and go up 3-4 teeth in the rear is where I would start.

Posted by: chronicareo

thanks a bunch

Posted by: nightmare311

OK guy i need a little help fast.. i got to ride my bike for a little wile today.. its running a 14/38 its the 4 speed trans.. the bike fells like it has no 1st gear.. lots of torque but no go.. what do ya'll think i should change to..

Posted by: slow

quote:
Originally posted by nightmare311
OK guy i need a little help fast.. i got to ride my bike for a little wile today.. its running a 14/38 its the 4 speed trans.. the bike fells like it has no 1st gear.. lots of torque but no go.. what do ya'll think i should change to..

15/38 or 14/35

Posted by: nightmare311

thats a big jump... do ya'll know of any places on the new where theres a gearing chart?

Posted by: slow

quote:
Originally posted by nightmare311
thats a big jump... do ya'll know of any places on the new where theres a gearing chart?

If you search on ask or w/e you can find a chart that you type in the gearing/rpm/tire size/hp and it will tell you your gear ratio and top speed.

I found a gear thing like i said above on a go cart site.

heres a thing that might work
http://www.corral.net/tech/gearcalc.html

Go to ask and type in Gear Ratio Calculator

Posted by: nightmare311

thanks for the info i think i need togo with a 15/36.

Posted by: 2muchquad

I run 14/36 in my 385ex.It still has an ungodly amount of torque,i just wish i could put in the 6th gear from a 350x.Hmm...

Posted by: nightmare311

ok guys i got to race im quad lastnight.. its running a 14/38
it has the 04 ktm 450sx motor 4 speed.still first does 30mph
thats to fast and it seems to bog bad in 2nd. trying to power out of turns. do ya think going to a 13 in the front would help.

Posted by: protraxrptr17

I figured the 14 would be too much. The 13/38 is a little high even for my 525 sometimes. Drop to a 13/40 and try that.

Posted by: nightmare311

tryeda a 14/41 same as 13/38 it was way to short..it ran out of gears to fast..