Positioned in Herald's allround motorcycle lineup, the 2021 Herald Cafe 400 relies on a 397 cc (24.2 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 27 HP (19.7 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 68 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 Cafe 400 measures 165 kg (364 lbs) dry, translating to a power-to-weight ratio of 0.16 HP/kg (6.11 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. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Herald archive, this model family spans 3 indexed model years from 2019 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
68 HP/L
Power-to-Weight
0.16 HP/kg (6.11 kg/HP)
Standover Height
790 mm (31.1 in)
Engine
Displacement397.0 ccm (24.22 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power27.0 HP (19.7 kW))
Fuel SystemCarburettor
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Frame TypeSteel
Front SuspensionTelescopic fork
Rear SuspensionDual shocks
Wheels & Brakes
Front BrakesSingle disc
Rear BrakesSingle disc
WheelsWire spoked, black rims
Dimensions & Weight
Dry Weight165.0 kg (363.8 pounds)
Power/Weight0.1636 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.
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.
