Underbones
2004Honda Monkey 50
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The 2004 Honda Monkey 50 is a tiny, iconic mini bike from Honda's long-running Monkey line. Its air-cooled 49cc four-stroke single makes 3.1 hp and 3.1 Nm through a four-speed gearbox. A low 660 mm seat, 68 kg wet weight and a 4.5-litre tank make it fun and easy to ride.
- Capacity
- 49.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 4-speed
- Dry weight
- 58.0 kg
- Seat height
- 660 mm
- Power
- 3.1 HP (2.3 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's designed for short, playful rides around town, backyard fun, and being an eye-catching novelty bike rather than serious transportation.
- Built for
- The Monkey has a charming, go-kart-like personality that prioritizes grins and style over outright performance.
- Not ideal for
- It's not for riders who need highway speeds, long-distance touring capability, or serious off-road performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 49.0 ccm
- Power
- 3.1 HP (2.3 kW)
- Torque
- 3.1 Nm (0.3 kgf-m) @ 6000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.0534 HP/kg (dry)
- Bore x stroke
- 39.0 x 41.4 mm
- Compression
- 10.0:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Full transistor type battery ignition
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multiplate
Dimensions & weight
- Wheelbase
- 895 mm
- Overall length
- 1360 mm
- Overall width
- 600 mm
- Overall height
- 850 mm
- Seat height
- 660 mm
- Dry weight
- 58.0 kg
- Wet weight
- 68.0 kg
- Fuel capacity
- 4.50 litres
- Ground clearance
- 150 mm
Chassis & suspension
- Front suspension
- Telescopic fork
- Rear suspension
- Swing arm
- Rake (fork angle)
- 25.0°
- Trail
- 42 mm
Brakes & wheels
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Front tyre
- 3.50-8
- Rear tyre
- 3.50-8
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2002 | 2004 | 2006 | 2009 | 2011 |
|---|---|---|---|---|---|
| Capacity | 49 cc | 49 cc | 49 cc | 49 cc | 49 cc |
| Dry weight | 58 kg | 58 kg | 58 kg | 58 kg | 58 kg |
| Seat height | 660 mm | 660 mm | 660 mm | 660 mm | 660 mm |
| Fuel capacity | 4.5 L | 4.5 L | 4.5 L | 4.3 L | 5.5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Honda Monkey 50?
The 2004 Honda Monkey 50 has a Capacity of 49.0 ccm (2.99 cubic inches).
What engine power does the Honda Monkey 50 have?
The 2004 Honda Monkey 50 has a Power of 3.1 HP (2.3 kW).
How many gears does the Honda Monkey 50 have?
The 2004 Honda Monkey 50 has a Gearbox of 4-speed.
What is the torque of the Honda Monkey 50?
The 2004 Honda Monkey 50 has a Torque of 3.1 Nm (0.3 kgf-m or 2.3 ft.lbs) @ 6000 RPM.
How much does the Honda Monkey 50 weigh?
The 2004 Honda Monkey 50 has a Dry weight of 58.0 kg (127.9 pounds).
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