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.
Click Here to read this historic feature article only on Bikernet.com
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