Kawasaki H2
The Kawasaki H2 Mach IV was introduced in 1972 as a 750cc two-stroke triple-cylinder motorcycle, notorious for its extreme power and challenging handling that earned it a fearsome reputation. It was part of Kawasaki's 'Mach' series of two-stroke triples and became infamous for being dangerously fast for its era, with poor brakes and frame flex contributing to its 'widow maker' nickname. Production ended in 1975 due to tightening emissions regulations, but the H2 legacy was revived in 2015 with the supercharged Kawasaki Ninja H2, a modern tribute to the original's spirit of raw performance.
74 hp
Power
76 Nm
Torque
202 kg
Weight
193 km/h (120 mph, estimated for 1972-75 H2 750)
Top Speed
~10-12 L/100km (note: estimate based on carbureted 2-stroke triple; highly dependent on riding style)
Fuel
Faired
Body
What Buyers Should Know
Supercharged Power Plant
The H2 is the world's first supercharged production sportbike, producing 200+ hp (228 hp on the H2R). This forced-induction system is largely self-contained and has proven reliable, but supercharger belt inspections at scheduled intervals are critical.
Strong Resale Value
The H2 holds its value exceptionally well due to its limited production numbers and iconic status. Low-mileage examples often sell close to or above original MSRP on the used market.
Watch the Cooling System
Owners report the H2 runs hot in slow traffic, and the radiator fan can work overtime in city riding. Ensuring the coolant is fresh and the fan operates correctly is a key pre-purchase inspection point.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Kawasaki H2
