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1985 Dr250 vmx race bike finalised...

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Thought i might put this up , something different , my meth burning beast . Making a fast one of these is a mission but super happy with the result 👍🏻

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Stock frame but modified to suit 89' rm top section of subframe , stock wheels and brakes , 82' rm swingarm ( stocker kept cracking ) modified linkages and shock , 82' 125 tank , modified 89 seat , cr forks , kx clamps , motor bored to 307cc balancer removed , crank lightened and modern small ign rotor( removing 4.5kg of rotating mass ! ) 15.5:1 comp , big cam valves and springs , heavily ported , 37mm pumper carb on methanol . In a drag race ( on the dirt ) it will slowly but regularly pull away from a healthy modern 250f . With the stock cam it wont rev but makes more torque than current 450 . A critical mod was the fitting of a chainsaw decomp button in the head . Heaps of fun to ride and handles well , maybe one day lace up an 18 inch rear instead of the 17...

 

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