Christini

Listed for students and visitors near Temple University in Philadelphia, Pennsylvania.

Philadelphia maker of the only mechanical all-wheel-drive bikes and e-bikes, founded in 2000 and hand-welding every frame at its 2nd Street factory. Its patented system powers the front wheel when the rear loses traction, proven in Antarctica, Greenland, and the Yukon; built to order with a 7-day money-back guarantee.