The body is the main part that all other parts are attached to. The body was the first and biggest thing we have made. We started on onshape and cut it out on the shop bot.
The braking was taken from a used bike. The brake was attached using a 2x4. The ____ was then put on the left of the driver for easy access. the modified the brake to squeeze the wheel tighter.
The throttle was powered by a chain on an axle behind the seat and connects to the middle wheel on the back. the gear was attached using a plexiglass washer we designed to center the gear on the axle. The gear stays center using two nuts and some lock tight. this throttle method worked the best but most times unreliable so we changed the design to hover over the wheel.