American Restoration (2010)

S4E16 Back to Four Square

A unique 1950s British Ariel Square-Four motorcycle rolls into the shop, prompting the team to dive into a full restoration effort. Can Rick transform this dilapidated bike into a reliable ride for the open road? Meanwhile, Tyler steps in to give Ron and Leonard some training on the shop's forklifts, but he takes it up a notch by having them practice with massive excavators instead. The tension rises when the confident Ron dares his lighter-weight apprentice, Leonard, to a big-rig showdown, leaving everyone guessing about who will end up teaching whom.