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2 Stroke Bicycle Engines & Kits 2 stroke engine kits need careful installation and setup, find out how from our professionals here!

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  #1  
Old 01-10-2017, 08:07 PM
Jack Skip Jack Skip is offline
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Join Date: Dec 2016
Location: Abaco Bahamas
Posts: 16
Default 70 degrees or 75

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.
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Old 01-10-2017, 08:55 PM
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ultralight01 ultralight01 is offline
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Join Date: Oct 2016
Location: Hood River, Oregon
Posts: 192
Default Re: 70 degrees or 75

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.
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Old 01-11-2017, 08:41 AM
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xseler xseler is offline
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Default Re: 70 degrees or 75

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!!
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Old 01-11-2017, 09:03 AM
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cannonball2 cannonball2 is offline
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Location: Colonial Coast USA.
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Default Re: 70 degrees or 75

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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