Bimota HB3-S (1983-85)

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The Bimota HB3-S motorcycle was produced from 1983 to 1985, with only 101 units being made. It has a four-stroke, transverse four-cylinder, DOHC engine with 4 valves per cylinder, a capacity of 1062cc, and 9.7:1 compression ratio. It has an air/oil-cooled system with 4x 33mm Keihin carbs and electronic ignition. With a maximum power of 85.8 kW/115 hp at 8500 rpm and a maximum torque of 100 Nm/73.4 lb-ft at 7500 rpm, it has a top speed of 235 km/h/146 mph.

The HB3-S has a frame formed from four parts and rear shock absorber crossbar. The lower cradle has two connecting plates made of machined avionic steel. The front suspension is Italia 40 mm with 8 settings with magnesium tubes, whereas the rear suspension is a slightly backward facing De Carbon shock absorber with 10 settings. The swing arm is made of chrome-molybdenum steel. It also has a front brake with 2x 280mm discs and a rear brake with a single 280mm disc. It rolls on a front tire of 3.5 x 16 and a rear tire of 4.24 x 16. Its dry weight is 239 kg / 526.9 lbs.

Technical specifications:

Make Model: Bimota HB3-S

Year: 1983 – 85


Production: Included in 101 units for HB3
Engine: Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.
Capacity: 1062 cc / 64.8 cub. in.
Bore x Stroke: 70 x 69 mm / 2.75 x 2.71 in.
Compression Ratio: 9.7:1
Cooling System: Air / oil cooled
Induction: 4x 33mm Keihin carbs.
Ignition: Electronic
Starting: Electric
Max Power: 85.8 kW / 115 hp @ 8500 rpm
Max Torque: 100 Nm / 10.2 kgf-m / 73.4 lb-ft. @ 7500 rpm
Transmission: 5 Speed
Final Drive: Chain
Frame: Formed from four parts. The main part linked with the steering tube with the rear shock absorber crossbar. Then there is a lower cradle with two connecting plates made of machined avionic steel .
Front Suspension: Italia 40 mm with 8 settings with magnesium tubes

Rear Suspension: Slightly backward facing De Carbon shock absorber with 10 settings. The swing arm is made of chrome-molybdenum steel.
Front Brakes: 2x 280mm discs
Rear Brakes: Single 280mm disc
Front Tyre: 3.5 x 16
Rear Tyre: 4.24 x 16
Dry weight: 239 kg / 526.9 lbs
Top Speed: 235 km/h / 146 mph.

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