Anything can be made to fit with the right amount of time mate, Best bet for 17" wheels is an mc18 front end (all of it forks, yokes, calipers, wheel etc) mc18 rear swingarm and an mc21 rear wheel. Or an mc18 rear wheel if you dont mind having an 18" one. Like I said, I'm converting mine to that spec (but using a '21 swingarm). If you subscribe you'll be able to see the progress when it gets going!
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More **** two strokes than you can shake a **** stick at.