Built around Honda's sport motorcycle platform, the 1973 Honda CB 350 utilizes a 325 cc (19.8 cu in) air-cooled twin, four-stroke layout. In factory specification, peak output is rated at 36 HP (26.3 kW) at 10,500 rpm while maximum torque reaches 25 Nm (18.4 lb-ft), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 110.8 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the CB 350 measures 170 kg (375 lbs) wet (curb), translating to a power-to-weight ratio of 0.21 HP/kg (4.72 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,300 mm (51.2 in) wheelbase engineered for quick, flickable steering geometry. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 165 km/h (103 mph).
Within MotoLibrary's Honda archive, this model family spans 4 indexed model years from 1970 to 1973, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
110.8 HP/L
Power-to-Weight
0.21 HP/kg (4.72 kg/HP)
Standover Height
790 mm (31.1 in)
Engine
Displacement325.0 ccm (19.83 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power36.0 HP (26.3 kW)) @ 10500 RPM
Torque25.0 Nm (2.5 kgf-m or 18.4 ft.lbs)
Compression9.5:1
Bore x Stroke64.0 x 50.6 mm (2.5 x 2.0 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Fuel ControlOverhead Cams (OHC)
IgnitionCoil and breaker points
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Top Speed165.0 km/h (102.5 mph)
Chassis
Front SuspensionTelescoping fork
Rear SuspensionSwinging arm
Wheelbase1300 mm (51.2 inches)
Wheels & Brakes
Front Tyre3.00-18
Rear Tyre3.50-18
Front BrakesSingle disc
Rear BrakesExpanding brake
Dimensions & Weight
Dry Weight149.0 kg (328.5 pounds)
Weight incl.170.0 kg (374.8 pounds)
Power/Weight0.2416 HP/kg
Seat Height790 mm (31.1 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.