Maintenance & Technical > KX250 / KX125

Big Bore kit for 03 KX250

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slowguy:
Hey everybody,
I'm looking into doing a little bit of a hop-up to my 250. There is a company named Kustom Kraft Performance and I'm just wondering if any of you have used them or know someone who has. I'm thinking about either their 265 or 301 kit. Not sure on which one I will go with. Any ideas or things that you have heard would be welcomed. thanks for the help

cbxracer30:
Bang for the buck you cannot beat Eric Gorr's big bore kits they include porting for your style of riding and all the right head mods He has built 5 ama legal big bores for myself and friends with no regrets .He may also have one for your bike setting on his shelve so very down time  give him a call he'll answer all your questions.His Phone # is 630-825-5645

CR480R:
Kustom Kraft did a plated 270 big bore for my buddies CR250.. The price was good and the work was excellent... But i didnt see any noticable porting.. The CR270 ran well, but I think porting would be required for maximum results on any big-bored engine.. I would look into EG as mentioned above..

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