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Jefferson motorcycle

The Mysterious 1913 Jefferson/Waverly

By General Posts

One of the First Overhead Valve Engine Configurations

By Wilburn Roach with photos by Markus Cuff and from the St. Francis and Marquette Museums

Jefferson motorcycle was only made for one year–1913! Only one twin OHV Jefferson exists.

“As soon as someone says there’s only one,” Don said, “three more show up.” Don is the founder of the Sierra Madre Motorcycle Company.

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