Bimota HB1

Born in 1973, the Bimota HB1 had a SOHC heart taken from a Honda CB750K. Unfortunately, only ten units from this bike were ever produced.

Bimota HB1
Bimota HB1 1.jpg
Bimota HB1
Production 1975
Class Classic
Air/oil-cooled, four-stroke, transverse four cylinder, SOHC, 2 valves per cylinder
Bore / Stroke 61.0mm x 61.0mm
Compression ratio 9.2:1
Horsepower 69.06 HP (51.5 KW) @ 8000RPM
Transmission Gear box: Gear

Final Drive: Chain

Clutch: Wet multi-disc
Suspension Front: Ceriani telescopic fork
Rear: Marzocchi adjustable dual shocks
Brakes Front: Dual discs
Rear: Single disc
Manuals Service Manual

The Bimota HB1 was a Air/oil-cooled, four-stroke, transverse four cylinder, SOHC, 2 valves per cylinder Classic motorcycle produced by Bimota in 1975. Claimed horsepower was 69.06 HP (51.5 KW) @ 8000 RPM.


A 61.0mm bore x 61.0mm stroke result in a displacement of just 736.0 cubic centimeters.


The bike has a Gear transmission. Power was moderated via the Wet multi-disc.


Stopping was achieved via Dual discs in the front and a Single disc in the rear. The front suspension was a Ceriani telescopic fork while the rear was equipped with a Marzocchi adjustable dual shocks.

1975 Bimota HB1Edit


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 aluminum 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.