im purchusing a 2005 trx 250 ex for $2000 and i have been doing a bit of researching. im looking for new aftermarket parts but i havent found anything! if anyone knows anywhere to get a big bore kit, exhaust, bigger carb., i would really like to know. also, i dont know how large of carb or jets i can get so if you know then please let me know. thanx to anyone helpfull.

 

Thats why its only $2000


Buy a 450r if you want something faster.

 

a 250ex is not fast. it wasnt meant to be and never will be a fast quad. it is a good machine for what it does. it is a great starter machine. they go anywhere do anything and dont have enough power to scare a new rider. trying to make a 250ex fast or faster is a waste of money. just my .02.

 

I think Powroll has high ratio rockers and higher compression pistons available. The air tube mod helps a lot and that's free.

Hope this helps,
SMC

 

The 250 is a great bike, but only within its limitations. First off, this isn't a machine that you want to get to hopped up.........it just doesn't have the suspension to handle extreme speeds. If you really want to go fast, then step up to a real sport bike and leave the little 250 for the kids. I would just vent the airbox (but not to much, that little 250 can only handle so much air!) and an aftermarket exhaust, and be satisfied with that.

I would certainly change the tires. The balooney stockers tend to make the bike push in turns. I run Holeshot XC's on ITP rims, which make the bike about 3" wider in back and 2" in front. Way more stable, and cures the pushiness.

 

What is the "air tube" mod?

 

you take it off.

 

powroll has a big bore kit for it.