SFO Museum on Twitter: "Bicycle maker Ignaz Schwinn purchased Excelsior in 1911. A factory-backed racing team promoted Excelsior, and in 1912 at the Playa del Rey motordrome near LA, Lee Humiston became
EXCELSIOR Bikes | Lifestyle Bikes.
THE EXCELSIOR MOTORCYCLE HISTORY STORY Bikes 1978 CARD | eBay
Mecum to auction rights to Excelsior-Henderson motorcycle brand | ClassicCars.com Journal
Excelsior Henderson Revival | Cycle World
Excelsior Bikes! Community Bicycle Workshop at SF Community Alternative School*