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Thread: 300ex in a 450r frame

  1. #1
    Join Date
    Nov 2014
    Posts
    1

    300ex in a 450r frame

    Does anyone know if this would work? I have out grown the 300ex body but because of the age restriction I cannot move up to a bigger bike!

  2. #2
    Join Date
    May 2008
    Location
    North Carolina
    Posts
    2,158
    This is a stupid restriction. Becomes a different kind of safety issue doesn't it?

    I suggest you try your question over in ******** where they set these up for GNCC racing.

    There are lots of conversion parts for the 300EX and 300X for starters to get it wider and better handling, etc.

    Someone may have also tried this conversion. Any 450 frame and a 250cc bike engine would be a good idea also.
    '08 Monster Kawasaki KFX450R (black)
    Too many mods

    '99 Sport 400
    Out of a time capsule
    Bone stock, new condition (6/08)

    '00 TRX400EX
    Already a project in progress
    Full Yoshimura Exhaust, UNI filter & jetting
    ITP Holeshot HD rears XC fronts on ITP T-9 Baja wheels
    PRM Desert Bumper, PRM full skid protection, & CDB air scoops
    T.M. Design Powerlip Chain Guide, DG Nerf Bars & Pro Armor FAT Pegs
    Duncan Graphics kit, gripper seat cover & Shock-Pros flame covers
    Pro Taper taperwall bars & Cycra Probend hand guards
    Nac's Racing number plates & headlight covers
    14/38 gearing that was on it

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