how does anyone think about 14 36 for a 400ex. racing mx if not what would be good in the front. i'm staying with 36 in rear

 

I thought the 400 is stock 38 in the rear. I run totally stock gearing right now with 18" fast trekkers in the rear and radials up front. I would like to go down a couple teeth in the rear but don't know where to find the sprocket without paying to much.

 

it is 38 i went to a 36r 14f i wanted to know if that was a good setup

 

how do you like the 18" rears and mx fronts? I am thinking of getting them butI was wondering if there is a downside to them. I occasionally trail ride and I know that ground clearance would be sacrificed, but is it worth it and why? Are the MX fronts car tires that are grooved and sized 145/10?

 

Hakmazter,

I like the 18 rears, definitely more control of the rear end on the mx track. The front radials however, I would much prefer a 19 to 20 inch atv tire than a car tire. I ride mainly loose dirt and sandy tracks in South Florida and these don't bite at all in that terrain. The downside is that if you go with 22" atv tires in the front you feel like you're on a harley rather than a quad setup for mx. Can't wait for the new holeshot 20x10 fronts.

 

BTW mine are grooved 145/10

 

Just curious?You do realize that the stock gearing of 15/38 and your desired 14/36 are basically the same final gearing.stock=2.53,your 14/36=2.57.the stock 15f/36r=2.40 not a big change but should be noticeable.What are you trying to accomplish for the mx track with your gearing?Do you want more revs or more torque pull or are you trying to regear to offset 18inch rears?With stock size tires,if its revs put on 13f with your 36r for a 2.76 final,not really recommended due to such a small primary drive on a torquey motor,better off with 14f/stock38r=2.71 for durability.If its torque pull a 16f/your36r=2.25 should be nice and with 18inch rears should be closer to stockgears/tires than anything.have fun

 

I have a stock 400EX, no engine mods, and I'm thinking about Holeshot XCTs. What should I re-gear with to compensate for taller gearing that I get with larger tires? I've heard a 14 front does the trick.

 

Back to my original question, does anybody know where to get a 36 tooth or smaller rear sprocket for a 1999 400ex? Thanks.

 

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