bicycle frame and type for engine kits
Is your bike able to change into a moped?
Here is some suggestion for your bicycles.
The engine requires a clearance of at least 15 inches in height on the seat tube (the part of the frame under the seat) and 14-15 inches in length on the down tube (the diagonal part of the frame), and it is approximately 5 inches wide.
We recommend installing these kits on bicycles with a 1 inch diameter seat tube and with a 1-1.25 inch diameter on the down tube.