70 degrees or 75

Discussion in '2 Stroke Bicycle Engines & Kits' started by Jack Skip, Jan 10, 2017.

  1. Jack Skip

    Jack Skip New Member

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    What is the mounting geometry of a china girl?

    Does it vary?

    48cc vs 66cc?

    Which bike frames are best for this?

    Crassius. Leave me alone, don't kill this one too.
     
  2. ultralight01

    ultralight01 New Member

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    66cc is best for power and overall practicality. Pretty much any bike frame with disc brakes, a suspension fork and a big enough spot in the frame.

    You can mount the engine in literally any orientation. There's a member who mounted one upside down. It's a two stroke, they're not as pesky as a four.

    Basically, get a bike, fit the engine somehow, and make it work. The engine will run fine.
     
  3. xseler

    xseler Well-Known Member

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    Main thing is to keep the carb pretty close to level..........a little bit of angle won't hurt anything!

    Best of luck in your upcoming build!!
     
  4. cannonball2

    cannonball2 Active Member

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    The engines were originally designed years back for what I call the "double diamond" frame.(see pic)
    As has been said here there are so may ways to mount to different frames, and many mounts available it basically your pick. Just choose something with enough room for the engines dimensions. A lot of MTB frames are pretty tight. Generally most cruiser frames will require and extended front mount, which are easily found. Depends on how much work you want to put into getting it mounted.
     

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