How many sprocket teeth make up for tire height???

[shamisc]

How many teeth make up for tires sizes? example: Running 15 t with 20" rears & drop to a 14 t, would it be like runnig 18" tires? OK, I currently run 15/34 gearing with 20" rears that works great all around. Today I put my old 18's on to try out with the 15/34 and it seems like a rocket ship out of the hole and it pulls hard for about 300 ft or so!! I want that same rocket ship feeling, but with my 20" rears! I think the 14 t front might get me close. Does anyone have a gear ratio chart with tires sizes included ??:confused:

[InsAyneROostin]

Check this site. it should help yah out with what you need. Peace. http://home.earthlink.net/~gellett/400ex.htm

[brandonpeake]

what is stock gearing on the 400

[44oEX]

stock is 15/38.

Just go back to your 20's and the stock rear sproket ( 38 )

[dirtmomma]

Originally posted by InsAyneROostin
Check this site. it should help yah out with what you need. Peace. http://home.earthlink.net/~gellett/400ex.htm

Hey thats pretty cool, they didn't have one for a 300ex though, I'm getting ready to do some gearing w/ my 300 for flattrack. Right now I'm running 14/38 w/ 16" tires on rear, for the shorttrack I ran this winter I ran 13/38 w/ 18" tires, this track I'll be running soon is about 20-30' longer so does anyone have any suggestions for that??? I just got a 36 rear I was gonna try w/ my 13 & 14 tooth to see what that does I need more umf out of the turns!!