1959 Triumph 5TA Speed Twin

Brand new in 1959, the Triumph 5TA Speed Twin was Triumph’s first “unit construction” 500cc design. Like the 350cc 3TA which preceded it by one year, the engine and transmission shared a common case. The new model also shared its little brother’s bulbous and heavy steel bodywork, designed for rainy Britain; it was often removed and discarded Read more

1975 Harley-Davidson MX250 Prototype

Looking back at the AMF (American Machine and Foundry) era at Harley-Davidson, and the earlier purchase of the Italian manufacturer Aermacchi, one sees Harley’s interest in adding small displacement, purpose built race bikes as part of their product mix. This MX250, the Baja 100 plus several other two-stroke “dual sports” and “street scramblers” Read more

1908 Harley-Davidson Model 4 “Strap Tank”

By 1908 the newer Harley-Davidson factory employed 18 workers and built about 450 motorcycles per year. This was just five years after the debut of the now famous 1903 Harley-Davidson Single. The loop frame and atmospheric induction single design was pretty typical for the time; both Indian and Harley patterned their motors after the successful Read more

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