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250r's w/ 310 Kits
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Posted by: djgrooven

Who here has a 310 kit on there 250's and can really smoke those 450's out there.

Posted by: wilkin250r

You need to change your avatar.

Posted by: deathman53

I have a 310 pv in my atc250r with all the mods to make it work good, its almost too much bike for the chassis and thats with a +1 swinger. It should stomp 450's in a quad chassis.

Posted by: Eddiesanders250

My sparks 270 can walk all over a stock 450. not sure how a modded 450 would compare.

Posted by: djgrooven

I was Just Curious on how a 310 kit wil run with those 450's.
I am Anxious to take mine to the dunes and run it with those thumpers. Here is what MY 250 looks Like

Posted by: QuadRacer041

i have a 310 pn my 250r and i will out run my wlash crf and 06 450 up top, its an excellant choice for mx but not enough bottom for xc.

Posted by: Dave83

I have an ESR 310 w/the 7 porting.Its right there with modded 450s.Win some, lose some, depends whose on the 450.My next one will have the 9 porting,so it should be a little better on top.

Posted by: Eddiesanders250

i think you meen the 11 porting?

Posted by: Eddiesanders250

sorry never mind it is the 9 porting

Posted by: 300exQuadracer

i have a 310 with no porting and was getting the holeshot all most everytime at the local track against yfz 450s and 450rs

Posted by: LT250Racer609

i just got a 310 top end but it hasnt arrived yet. its not ported but im going to have my uncle port it so it will deff. rip....im anxious to see how fast its gonna be compared to my Gt Thunder 265 ported/polished motor