non circular down tube shape.

[LongboardMalinois]

I am going to be putting a 66cc engine kit on a Mongoose mountain bike, and i noticed that the down tube is not circular, but an oval shape. I was wondering if anyone else has dealt with this issue, and if someone could give me a few pointers, as this is my first motorized bike built from a kit.

 

[2door]

Here is an old but informative thread dealing with oversized and non-standard frames.
Hope it offers some help > http://motorbicycling.com/showthread.php?t=6427&highlight=oversized+tubing+solved

You might also type 'Mongoose' into our 'Search' feature and see what others have done to mount an engine.

Good luck.

Tom

 

[LongboardMalinois]

Thanks! The old thread was very helpful!