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xr50 to xr70

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hmm no

youll need the xr70 head to do the swap, and denn youll want the cam and carb too.


its cheaper to buy a trailbikes 88 kit, it will be way faster too

i made the mistake of trying to cheap out on the bore kit the first time, got a 72cc kit with a flat top piston that was nothing but trouble. finally blew it up and got what i should have gotten in the first place.

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