Motorcycles > Old Vintage Motorcycle, Parts & Accessory Advertisements

The Most Powerful Single Cylinder Engine Ever Put In A Motorcycle

(1/1)

smallengineshop:
That's a big claim from Excelsior Supply Co, and maybe it was true in 1909. Here's a 1909 Excelsior magazine advertisement boasting about the power, reliability and craftsmanship of their single cylinder motorcycle engine. I wonder what they mean by "auto cycle?"

Click image to enlarge:

Navigation

[0] Message Index