|Build your own chopper, just like the boys from Orange County Choppers in California. Custom Bike Shop allows you to build three different choppers. Bike kit features a K'NEX frame to build and customize with retro wheels, fenders and other custom parts. Then use the REVVING throttle and fire it up with a real sound system. Comes with 156 plastic parts, and step by step instruction book. For ages 8 and up.