Honda CB650 Custom (1980-81)

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The Honda CB 650 Custom is a motorcycle that was manufactured from 1980 to 1981. It has a four stroke, transverse four-cylinder engine with a capacity of 626.8cc and a compression ratio of 9.0:1. The bike features four 26mm Keihin carburetors, transistorized ignition, and electric starting. It offers a maximum power of 63hp at 9000 rpm and a maximum torque of 51.5 Nm at 8000 rpm. The transmission is a 5-speed and the final drive is a chain. The bike has a front suspension consisting of centre axle coil spring forks and a rear suspension with dual Showa dampers and adjustable spring preload. The front brake is a single 275mm disc with one piston caliper while the rear brake is a 180mm drum. The front tyre size is 3.50-19 and the rear tyre size is 130/90-16. The bike has a wheelbase of 1480mm and a seat height of 760mm. In addition, the dry weight of the bike is 220kg and it has a fuel capacity of 13.5 litres.

Technical specifications:

Make Model: Honda CB 650 Custom

Year: 1980-81


Engine: Four stroke, transverse four cylinder, SOHC, 2 valves per cylinder.
Capacity: 626.8 cc / 38.2 cu-in
Bore x Stroke: 59.8 x 55.8 mm
Cooling System: Air cooled.
Compression Ratio: 9.0:1
Induction: 4x 26mm Keihin carburetors
Ignition: Transistorized
Starting: Electric
Max Power: 63 hp / 46.9 kW @ 9000 rpm
Max Torque: 51.5 Nm / 38 ft-lb @ 8000 rpm
Transmission: 5 Speed
Final Drive: Chain
Front Suspension: Centre axle coil spring forks
Front Wheel Travel: 135 mm / 5.3 in
Rear Suspension: Dual Showa dampers. adjustable spring preload.

Rear Wheel Travel: 91 mm / 3.5 in
Front Brakes: Single 275mm discs 1 piston calipers
Rear Brakes: 180mm Drum
Front Tyre: 3.50-19
Rear Tyre: 130/90-16
Trail: 121 mm / 4.6 in
Wheelbase: 1480 mm / 58.3 in
Seat Height: 760 mm / 30.1 in
Dry Weight: 220 kg / 485 lbs
Fuel Capacity: 13.5 Litres / 3.5 US gal

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