What size tire would you guys suggest for an '03 400 auto? I would like to go with 27's for the added ground clearance, but I'm not sure if they would take away too much power. I am probably going to go with a Titan 489 or 589 tire.

Thanks,

Jon

 

If you do you will loose a ton of performance, both acceleration and top speed and there aren't really any hop up stuff for the 400 to counteract it..

 

I agree with Bear ,no way a 400 is gonna turn those 27's
especially with the tread you are talking about.

 

don't go with anything taller then a 25 inch.

 

26's isn't to bad I wouldn't go 27's, Why would it take way from your top end speed? it should add to it, but you will have less power.

 

Wrong, it take so much horsepower to go so fast and unless you are against the rev limiter in high at max speed you are going as fast as the horsepower and gear ratio will let you. If you make the ratio high (which is what putting bigger diameter tires on does) without an increase in horsepower you will go slower, not faster. it will make your spped read off too.

 

I just put a set of 26 in mudlites on my 06 400 ac. I can definately notice a decrease in acceleration. The tires really make the bike look good. The tires added about 30 pounds of wieght (26-10-12/26-12-12) to the bike. Also after about 25 mph the speed is off almost 5 mph. Top speed droped by about 8 mph.

 

I am on my second set of 26inch mudlites on my 2003 AC 400. The first set met an early demise to what looked like a knife to the sidewalls and did not wear out. I am not concerned with going fast, or acceleration just getting to where I want to go. I went with the 26 inch tire to get the larger lugs to dig through the thick stuff. I did not notice any increase in ground clearence although I am sure there is some.

I now see that they make a 25 inch swamplite tires. With lugs about the same as the mudlite. If it performs the same then that may be a better option. It just has larger lugs for a 25 inch tire than most.

If I had to get a new set I would looka t those mounted on a set of ITP type 5 aluminum wheels.

SJ

 

I went out the other day and really tried out the tires. they suck! I pulled up next to a downed tree and tried to drive up on it; the bike woukd not turn the wheels with the front tires touching the tree. I got stuck numerous times because the bike can't get up speed to up anything or through anything. I'm going back to original size tires. I'll sell you these for a good deal. Only 68 miles on them.

 

Where you located at? Email me a grandallbrown@gmail.com might be intrested. Also I will offer stock 400 tires off of a 2006 model with 50 miles on them to keep you rolling