The Excelsior Motorcycle Company (later Excelsior Henderson) built racing motorcycles in Chicago from 1905 until 1931
The riders chased around steeply banked ovals made from wood planks often at speeds of 100 mph
These bigvalve racers had the same top speeds as their competitors, but the straight forward big valve design allowed for increased reliability, a competitive advantage for long distance races
This twin has a 61ci engine (1000cc) with exhaust valves larger than a Mack truck of the era
The Excelsior Motorcycle Company (later Excelsior Henderson) built racing motorcycles in Chicago from 1905 until 1931
The riders chased around steeply banked ovals made from wood planks often at speeds of 100 mph
These bigvalve racers had the same top speeds as their competitors, but the straight forward big valve design allowed for increased reliability, a competitive advantage for long distance races
This twin has a 61ci engine (1000cc) with exhaust valves larger than a Mack truck of the era
