The Bimota HB1 was a rare and exquisite motorcycle produced in 1975, with a limited production of only 12 units estimated. It was powered by a transverse four-cylinder, four-stroke, SOHC engine, featuring 2 valves per cylinder, resulting in a displacement of 736cc. Its bore x stroke measured 61 x 63mm, and its compression ratio was 9.2:1. The cooling system was a combination of air and oil-cooled. The motorcycle featured a battery induction coil ignition and an electric starter. It was capable of generating a maximum power output of 51.5 kW or 69 hp at 8000 rpm. The gearbox had five speeds, and the final drive type was a chain. The HB1 had a double open cradle frame structure constructed from chrome-molybdenum tubes. The front suspension consisted of telescopic forks, and the rear suspension was managed by a monoshock. The front and rear brakes had two discs and a single disc, respectively. Overall, the Bimota HB1 was an exceptional motorcycle that combined performance and design into a rare collector’s item.
Technical specifications:
Make Model: Bimota HB1
| Year | 1975 |
|---|---|
| Production | 12 units (est.) |
| Engine | Transverse four cylinder, four stroke, SOHC, 2 per cylinder |
| Capacity | 736 cc / 44.9 cub. in. |
| Bore x Stroke | 61 63 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air / oil cooled |
| Induction | 4x 28mm Keihin carbs |
| Ignition | Battery induction coil |
| Starting | Electric |
| Max Power | 51.5 kW / 69 hp @ 8000 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Frame | Double open cradle structure, made of chrome-molybdenum tubes |
| Front Suspension | Telescopic forks |
| Rear Suspension | Monoshock |
| Front Brakes | 2x discs |
| Rear Brakes | Single disc |
