The 1975 MY Bimota HB1 has, at its heart, an air/oil-cooled, four-stroke, 736cc, transverse four cylinder powerhouse mated to a five-speed manual transmission, and can produce a claimed 69 horsepower and 8000 rpm. It also boasts a dual exhaust system with dual mufflers, dual Marzocchi shock absorbers as a rear suspension, a Ceriani telescopic front fork, a braking system with dual discs in the front, an analogue instrument cluster, and aluminium wheels. It is estimated that only 10 units of this machine has been produced, and was created with the sole purpose of being used on the race track.