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duke 250

  1. RC390 , 250 , 125
    I was thinking of getting a rc125, because i am restricted by the a1 license system. But 125 is just awfull slow, so i was wondering if its possible to put a duke 250cc block on the rc125 and if so, do they have the same engine mounts? And also, would i need a new ECU?(Yes, i am aware of the...