Honda CB 400 N (reduced Effect) - 1980 Specifications and Reviews

The 1980 Honda CB 400 N is an accessible middleweight twin ideal for beginner and commuter riders seeking reliable, manageable performance. Its 27 horsepower air-cooled engine and lightweight 185 kg frame deliver nimble handling and easy maintenance. Known for affordability and dependability, this Japanese workhorse exemplifies Honda's practical engineering philosophy.

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General information

CategoryAllround
Year1980
ModelHonda CB 400 N (reduced effect)

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemAir
Fuel controlOHC
Valves per cylinder3
Bore x stroke70.5 x 50.6 mm (2.8 x 2.0 inches)
Compression9.3:1
Power27.00
Stroke4
Engine typeTwin
Capacity:395.00 ccm (24.10 cubic inches)

Physical measures and capacities

Weight incl. oil, gas, etc185.0 kg (407.9 pounds)
 
 

Honda CB 400 N (reduced Effect) dimensions and frame

Rear brakesExpanding brake
Front brakesDual disc
Rear tyre dimensions4.10-18
Front tyre dimensions3.60-19

Speed and acceleration

Top speed137.0 km/h (85.1 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity14.00 litres (3.70 gallons)

Performance Profile & Rider Fit

27 hp
Peak Power
9.5s
0-60 mph
85.1 mph
Top Speed

Best For

Track20%
City65%
Cornering50%
Daily Riding60%
Touring40%
Passenger40%

Rider Profile

Best ForThis is a low-power, forgiving naked bike well suited to beginners or riders returning to motorcycling after a break, especially given it is a restricted 'reduced effect' version aimed at learner license limits.
PurposeIt is best suited for relaxed commuting, learning fundamentals, and easy urban or suburban riding rather than any performance-oriented use.
Rider FitThe moderate 185 kg weight and low seat-friendly naked layout make it manageable for smaller or less experienced riders without excessive physical strain.
CharacterIt has a mild-mannered, approachable personality with smooth low-end delivery typical of an air-cooled twin, prioritizing predictability over excitement.
Not Ideal ForIt is not for riders seeking high speed, aggressive cornering performance, or serious long-distance touring comfort.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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