Honda CB250N/CB400N

Honda CB250N (CB400N)
Honda CB400N in the Honda Collection Hall
ManufacturerHonda Motor Company
Also calledSuper Dream
Production1978–1986
PredecessorHonda CB250T/CB400T Dream
SuccessorHonda CB450DX-K
ClassStandard
EngineAir-cooled four-stroke, parallel-twin, three valves per cylinder, sohc
Bore / stroke62.0 mm × 41.4 mm (2.44 in × 1.63 in) (250N)[1]
70.5 mm × 50.6 mm (2.78 in × 1.99 in) (400N)[2]
Compression ratio9.4:1 (250N)
9.3:1 (400N)[2]
Top speed83 mph (134 km/h) [3] (CB250N)
103.44 mph (166.47 km/h)[4] (CB400N)
Power27 bhp (20 kW)[3] @ 10,000rpm (250N)
43 bhp (32 kW) @ 9,500rpm (400N)[4]
Torque14.7 lb⋅ft (19.9 N⋅m)[3] @ 8,500rpm (250N)
24.5 lb⋅ft (33.2 N⋅m)[4] @ 8,000rpm (400N)
Ignition typeCapacitor discharge electronic ignition, electric start, kick start (N variant only)
Transmission6-speed, chain drive manual
SuspensionFront: telescopic forks;
Rear: swingarm with twin shock absorbers (adjustable for pre-load)
BrakesSingle-disc front, single piston caliper; drum rear (250N)
Twin discs front; drum rear (400N)
Tyres3.60S19-4PR front, 4.10S18-4PR rear[5]
Wheelbase1.395 m (4 ft 6.9 in)
1.390 m (4 ft 6.7 in) (400N)
DimensionsL: 2.115 m (6 ft 11.3 in)
W: .730 m (2 ft 4.7 in)
H: 1.105 m (3 ft 7.5 in)
Seat height0.795 m (2 ft 7.3 in)
Weight167 kg (368 lb)
171 kg (377 lb) (400N)[2] (dry)
Fuel capacity14 L (3.1 imp gal; 3.7 US gal)
RelatedHonda CB250T
Honda CB400T
Honda CM400
Honda CB450T
Honda CB450SC
Honda CB450DX-K

The Honda CB250N and CB400N Super Dream are motorcycles manufactured by the Honda Motor Company from 1978 to 1986. The successor to the short lived Dream model, it had a series of revisions including a six-speed transmission and what Honda termed as European styling [6] which resembled the CB750F and CB900F. It was a popular model for Honda with 70,000 bikes sold in the UK alone.[7]

  1. ^ "Honda Owners Manual". Honda Motor Company. p. 139. Retrieved 7 September 2019.
  2. ^ a b c Honda CB250:CB400 Owners Manual. Honda Motor Company. p. 100.
  3. ^ a b c "Bike magazine". Bauer. June 1980: 39. {{cite journal}}: Cite journal requires |journal= (help)
  4. ^ a b c "Bike magazine". Bauer. May 1979: 71. {{cite journal}}: Cite journal requires |journal= (help)
  5. ^ Honda CB250:CB400 Owners Manual. Honda Motor Company. p. 94.
  6. ^ Haynes CB250N & CB400N Owners Workshop Manual. Haynes Publishing Group. 1990. p. 5.
  7. ^ "Motorcycle International magazine". August 1988: 66. {{cite journal}}: Cite journal requires |journal= (help)

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