TAU
Tau, founded by Aroldo Triveldi and based in Milan, was an Italian brand built engines for motorcycles.
They initially built air-cooled 125 cc two-stroke rotary engines with valves that were used mainly in karts. Later he built over the engines so they were suitable for motorcycles.
In 1976 he built the Tau TVR engine with six-speed intended for road racers. Cross block machine were not suitable, so Triveldi developed a new engine.
In 1977 he presented two engines at the Salon of Milan. The young manufacturer Valenti and the existing brand Cabrera selected the Tau engines for their field equipment.
Tau developed a British company in 1979 with a 100 cc and 250 cc versions. Besides Valenti and Cabrera, Tau also built engines for Ancilotti, JCM and Puma.
The companies first engine, designed by engineer Aroldo Trivelli from Milano, was a two-stroke air-cooled rotary valve with admission and is mounted primarily on first go-kart in the displacement of 125 cc. After the experimental phase, Trivelli completes the study of its engine to suit particular motorcycle use. TVR was founded in 1976, the Tau (Tau Rotary Valve) with six-speed gearbox, three-cylinder transfer ports, of which the third split, and electronic ignition. The engine, mounted on a motorcycle race, reaches 200 km/h. The power is 27 hp at 11000 rpm. The TVR proves suitable to be installed on a motocross bike and Trivelli, shall change for a naturally aspirated engine more suited to the terrain. With these two engines, and a version of the engine rotating valve water-cooled with liquid circulation thermosyphon, the Tau Motosalone debuted in Milan in 1977. A young assembler Lombard, Valenti, click the Tau aspirated 125 for its new construction and regular bikes, and a House of Pesaro, to Cabrera, he approve the thruster developed by Trivelli for its models. In 1979, a business relationship is connected with some English houses requiring 100 cc engine to use regolaristico, but the most interesting innovation is the new 250 cc two-stroke naturally aspirated, which gave good results during testing and is adopted a new model of SUV Cabrera. Its power is equal to 38 hp at 8000 rpm.
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