Upper frame tubes that followed the contour of the fuel tank were a notable feature of Iver Johnson motorcycles, including this 1915 model.
While attempting to incorporate interesting design points, the 1915 Iver Johnson was ultimately a beautiful machine with little power.
Distinctive elements included the painted crankcase guards and cast floorboards.
The sharp angle between the intake manifold and head did not encourage efficient engine breathing.
The 1915 Emblem Twin motorcycle's 76.6-cubic-inch engine was unusually large for its day. It was a bold offering from a company struggling to remain afloat amongst fierce competition and the ravages of an economic recession. Learn more about the 1915 Emblem Twin.
The 1970 BSA Lightning motorcycle battled faster less-expensive Japanese bikes. BSA didn't survive long afterward as the competition from Japan proved too much. See pictures and learn how the BSA Lightning dealt with its rivals.
