At the heart of the 2021 Honda CB350 allround motorcycle, Honda relies on a 348.3 cc (21.3 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 20.8 HP (15.2 kW) at 5,500 rpm while maximum torque reaches 30 Nm (22.1 lb-ft) at 3,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 59.7 HP per liter and a 2,500 rpm working window between peak torque (3,000 rpm) and peak power (5,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the CB350 measures 181 kg (399 lbs) wet (curb), translating to a power-to-weight ratio of 0.11 HP/kg (8.7 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,441 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
59.7 HP/L
Power-to-Weight
0.11 HP/kg (8.7 kg/HP)
Power Band Window
3,000–5,500 rpm
Standover Height
800 mm (31.5 in)
Engine
Displacement348.3 ccm (21.25 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power20.8 HP (15.2 kW)) @ 5500 RPM
Torque30.0 Nm (3.1 kgf-m or 22.1 ft.lbs) @ 3000 RPM
Compression9.5:1
Bore x Stroke70.0 x 90.5 mm (2.8 x 3.6 inches)
Fuel SystemInjection. PGM-FI
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionElectronic
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet multiplate
Chassis
Frame TypeHalf duplex cradle
Rake24.7°
Trail93 mm (3.7 inches)
Front SuspensionTelescopic forks
Front Travel130 mm (5.1 inches)
Rear SuspensionDual hydraulic shocks
Rear Travel107 mm (4.2 inches)
Wheelbase1441 mm (56.7 inches)
Ground Clearance166 mm (6.5 inches)
Wheels & Brakes
Front Tyre100/90-19
Rear Tyre130/70-18
Front BrakesSingle disc
Front Brake Ø310 mm (12.2 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.181.0 kg (399.0 pounds)
Seat Height800 mm (31.5 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.
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.