Bonneville Motorcycle Speed Trials speed of 100mph, riding a Yamaha 350cc two-stoke motorbike. The event was held from 26-31 August. Valerie Thompson became the first female driver riding a motorcycle over 300 mph, reaching a speed of 489.663 km/h. The event was cancelled in 2015, due to poor salt flat conditions. Bonneville Motorcycle Speed Trials Bonneville Motorcycle Speed Trials (BMST) also known as AMA Land Speed Grand Championship is a motorcycle land speed racing event, held annually at Bonneville Speedway, US. The event is sanctioned by American Motorcyclist Association (AMA) and Fédération Internationale de Motocyclisme (FIM). Many AMA-certified US national speed records, and FIM-certified
Triumph Speed Twin Speed Twin. Edward Turner’s Triumph twin was a major turning point for the British motorcycle industry, as although a 500 cc parallel twin of medium capacity was not revolutionary, the 5T Speed Twin model was lighter than many contemporary singles with significantly more power and torque. Early models were only available in 'Amaranth red' with hand painted gold pinstripes to set off the chrome. Initially the one piece iron cylinder was secured with six studs which led to weakness, so these were replaced by eight studs. The two cylinders were fed by a single Amal Type 6 carburettor and many