gearing quesion

[krazyrider]

Im looking into gearing down my 07 400ex for gncc. How much should go down and do I have to change the number of teeth on both or just one sprocket(s)? Keep in mind I dont want to go down to much and lose all my top speed.

[bigbad400]

start by dropping the front one tooth, stock is 15 get a 14 if thats not enough or too much you need to look into the rear sprocket. more speed out of the rear go smaller. more power go bigger. opposite in the front.

[racerdan24]

I agree 100%. I do race and still trail ride my 08 and dropped the front down 1 tooth to a 13/39 setup. I didnt lose that much top end but for GNCC it may be just the ticket for you. Much better to be able to stay in second gear on trails and be able to get the pull out into wide open areas. Mind you.......you will definitely shift a bit more especially in first...it will geared alot lower than stock. I have had other ride mine and say it is a much better gear setup.

[bigbad400]

Originally posted by racerdan24
I agree 100%. I do race and still trail ride my 08 and dropped the front down 1 tooth to a 13/39 setup. I didnt lose that much top end but for GNCC it may be just the ticket for you. Much better to be able to stay in second gear on trails and be able to get the pull out into wide open areas. Mind you.......you will definitely shift a bit more especially in first...it will geared alot lower than stock. I have had other ride mine and say it is a much better gear setup.



stock front sprocket has 15 teeth and rear has 38, if you have 13/39 then you went down 2 in front and up one in back for a huge bottom end gain, i have a tall sprocket on mine in front, a 16 tooth for speed and in the back i put a 39 on to keep some bottom end. i can cruise at about 73 down the road without red lining it, but its also a 440.

[mmbintn]

stock gearing for an 07 is 14/39

[racerdan24]

Originally posted by bigbad400
stock front sprocket has 15 teeth and rear has 38, if you have 13/39 then you went down 2 in front and up one in back for a huge bottom end gain, i have a tall sprocket on mine in front, a 16 tooth for speed and in the back i put a 39 on to keep some bottom end. i can cruise at about 73 down the road without red lining it, but its also a 440.
Mines an 08 and the stock gearing is a 14/39. 07 and back i believe was 15/39.

[mmbintn]

Originally posted by racerdan24
Mines an 08 and the stock gearing is a 14/39. 07 and back i believe was 15/39.

Mine is an 07 and its 14/39 stock. I think 05 and newer are all 14/39.

[honda400ex2003]

that is correct, 05 and up have 14/39 so i guess you could go to a 40 or a 13 but they are kinda hard to find. you could run 19" rears or 18" rears instead of 20s too that would be like running one lower in the front with the 18s or 2 up in the back with the 18s. steve

[TRXRacer1]

Originally posted by honda400ex2003
that is correct, 05 and up have 14/39 so i guess you could go to a 40 or a 13 but they are kinda hard to find. you could run 19" rears or 18" rears instead of 20s too that would be like running one lower in the front with the 18s or 2 up in the back with the 18s. steve 13t is pretty easy but yeah that 40 isn't all that common.

[storms400ex]

yep 05 and up are 14/39

[krazyrider]

thanks everyone ill probably be ordering a sidewinder titanium 2 13 tooth front (one less than stock). should this be a significant gain? and can i leave the rear 39 alone?

[TRXRacer1]

Originally posted by krazyrider
thanks everyone ill probably be ordering a sidewinder titanium 2 13 tooth front (one less than stock). should this be a significant gain? and can i leave the rear 39 alone? Oh you'll feel it.

[racerdan24]

That will be perfect, I noticed an immediate difference with the 13/39 setup.

[bigbad400]

sorry guys i had no idea the newer ones have a different gear ratio, i thought they were all the same, ya learn something new everyday

[racerdan24]

LOL...honda couldn't leave well enough alone....

[katch26]

Originally posted by krazyrider
thanks everyone ill probably be ordering a sidewinder titanium 2 13 tooth front (one less than stock). should this be a significant gain? and can i leave the rear 39 alone?

just buy a cheap aluminum set to experiment with before dropping all that coin on sidewinder products.....jmo

[mmbintn]

I dropped one in the front and didnt notice much of a difference.

[TRXRacer1]

Originally posted by katch26
just buy a cheap aluminum set to experiment with before dropping all that coin on sidewinder products.....jmo You think a cheap aluminum 13t would be a good idea :confused:

[katch26]

do they even make aluminum front sprockets? no what I'm saying is it might be a good idea to buy a cheap sprocket set and a couple of extra sprockets to try them out (gearing wise) before committing to a 3-400 set.

nevermind he said he was going to buy only the titaniumII front sprocket