whats the biigerst bore kit for a 250r?

[ThorRacing37]

i think the biggest bore kit for a 250r is a 330 kit but im not sure and whats the second highest kit for it too?:confused:

[Eddiesanders250]

no its a little bigger than a 330, a lot bigger. sabertooth kit is a 500cc. I know psi makes a big bore i think 425 chef on here has one. CT makes a 410, ESR makes a 380 and 350. Theres more..................

[ThorRacing37]

WOW a 500 kit would be crazzy!!:devil:

[ThorRacing37]

whats the next size under a 330 kit?

[Eddiesanders250]

310 would be under 330

[beerock]

no the biggest is a 600

[bradley300]

i have also seen a company that garfts a cr500 cyl. on a 250r bottom end. then i'm sure you can bore that

[TheFontMaster]

Originally posted by beerock
no the biggest is a 600


I wanna see that beast:macho

Another crazy variation on the 250r motor is the polanda 400, a scrambler 400 top end modded to fit on the 250r bottom end.

[dober250R]

i'm gonna have to look into this polanda thingy ma bob. I've heard about people using that, I wonder what all has to be done. Interesting........................

[rebeltoad57]

My brother in law had a pilot cylinder mated to his bottom end by FTZ called the "Crankenstien" and it was insane.

[Aceman]

Originally posted by dober250R
i'm gonna have to look into this polanda thingy ma bob. I've heard about people using that, I wonder what all has to be done. Interesting........................

I've read that the Polanda isn't all that it's cracked up to be. I don't remember the specifics but I think the article mentioned you would be better off with an aftermarket big bore cylinder from a reputable company. I would research before you go this route.

[Eddiesanders250]

Originally posted by Aceman
I've read that the Polanda isn't all that it's cracked up to be. I don't remember the specifics but I think the article mentioned you would be better off with an aftermarket big bore cylinder from a reputable company. I would research before you go this route.

I agree with this. Do research and talk to people who have done it before you do anything.

[beerock]

yea its not all what its cracked up to be

[400EX QUADER]

I've ridden this one... http://www.mpracing.biz/gallery/album102 Thats a polanda... OMG was it fast! I was afraid to go past 3rd gear on the dunes. hehe. I was like holly s**t I better not go any faster or else my arms will fall off. very impressive and not over rated. I would get one if I had the cash. have any more questions lemme know.
thanx

[pro6]

I have a 400. But it uses the pilot jug instead of polaris. That way you use honda parts. FTZ and Trinity both make this motor.

[jst]

Last year at the Indy Dealer Expo I was checking out the 500CC cylinder from Trinity,that is designed for the 250R bottom end.

[twisted threads]

Originally posted by Aceman
I've read that the Polanda isn't all that it's cracked up to be. I don't remember the specifics but I think the article mentioned you would be better off with an aftermarket big bore cylinder from a reputable company.

I have seen a few good running Polanda motors but to much money for me to be spending. I have beat a few of them in drag races but one beat me by a few bike lenths......It was on alky and was VERY fast.

[400EX QUADER]

was that one that mp racing built?? was it a black and purple or orange one? just askin...

[E-ATV-Racing]

Check out the sabertooth, a 500cc jug for your 250R

http://saberracing.com/index.php?id=3%2C5%2C0%2C0%2C1%2C0