Step 4Photo 5 - The rear of the frame
iImage Information

The rear triangle is shown completed in Photo 5. The angle of the frame shown in the photo is the approximate it will be at when completed, allowing the rear of the frame to form a steep ladder. The frame could take on just about any shape imaginable, as long as the pilot's weight ends up centered between the two wheels. As for wheelbase, I think a the distance between the front and rear axle should be at least half the height of the frame for stability.