Bike Frame Types
- Single-Speed Frame. The retro-styled single speed street bikes offer heavy tubing, a large seat, and enough space to put the engine. Wal-Mart and Target sell this brand to consumers. The space between the top and bottom bars give enough space to mount the engine. The thick bars provide stability for the engine and rider. The large seat with springs makes it more comfortable to ride.
- Street Bike Frames. These frames offer the same features as those listed above. The brands are roughly the same in quality.
- Mountain Bike. Mountain bikes are designed to handle the rugged terrain, but the multiple gear systems make them poor choices to mount an engine upon. The gear shifters that are already part of the machinery and the larger cog in the back make the project more difficult.