Racing history: When two-strokes took over the Daytona 200, in the April issue – Roadracing World Magazine

From the April 2022 issue of Roadracing World:

The motorcycling world has never known a greater earthquake than the convulsion that transformed it in the early 1970s, when the dominant British industry collapsed under the Japanese onslaught and the circuits of the around the world have been taken over by two-strokes, relegating the four-stroke to the Great Price History.

At least until Dorna created four-stroke MotoGP in 2002.

A highlight of this seismic shift was Don Emde’s victory in the 1972 Daytona 200, the first by a rider on a two-stroke. At that time, the 200 was the biggest single-motorbike race in the world, raced around the huge Daytona super-speedway: just four turns, then 2.5 miles of full-throttle riding around the bank, a nightmare for early two-strokes, which tended to burn pistons and seize crankshafts…

—When two-strokes conquered Daytona, by Mat Oxley

In March 1972, Don Emde and his Yamaha TR3 became the first two-stroke winners of the Daytona 200, ending decades of dominance by BSA, Triumph and Harley-Davidson four-strokes. Read all about the ring-ding heard around the world in the latest issue of Road racing world!

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