At the heart of the 1951 BSA 350 Plunger classic motorcycle, BSA pairs a 350 cc (21.4 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 23 HP (16.8 kW), transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 65.7 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the 350 Plunger measures 175 kg (386 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.61 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,390 mm (54.7 in) wheelbase engineered for quick, flickable steering geometry. The 19-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 129 km/h (80 mph).
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.
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.
