Enduro Bikes
2012Hyosung RT125D
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The 2012 Hyosung RT125D is a lightweight 124cc enduro designed for novice riders and those seeking an accessible off-road machine. Its single-cylinder four-stroke engine delivers modest 13.5 horsepower through a practical 5-speed chain-drive gearbox. Known for affordability and simplicity, it's best suited for trail riding and learning fundamental off-road skills.
- Capacity
- 124.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 125.0 kg
- Seat height
- 790 mm
- Power
- 13.5 HP (9.9 kW) @ 10000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's designed as a light, easygoing commuter and cruiser-styled runabout rather than a performance or adventure machine.
- Built for
- It has a laid-back, custom-cruiser-inspired personality with modest power delivered through a simple, low-maintenance single-cylinder engine.
- Not ideal for
- It's not suited to riders wanting high speed, long-distance touring comfort, or genuine off-road capability.
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
- 124.0 ccm
- Power
- 13.5 HP (9.9 kW) @ 10000 RPM
- CO2 Emissions
- 3 CO2 g/km
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1080 HP/kg (dry)
- Bore x stroke
- 57.0 x 48.8 mm
- Compression
- 11.3:1
- Cooling system
- Oil & air
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, Multiplate
Dimensions & weight
- Wheelbase
- 1430 mm
- Overall length
- 2185 mm
- Overall width
- 845 mm
- Overall height
- 1125 mm
- Seat height
- 790 mm
- Dry weight
- 125.0 kg
- Wet weight
- 135.5 kg
- Fuel capacity
- 8.00 litres
- Ground clearance
- 230 mm
Chassis & suspension
- Frame
- Steel
- Front suspension
- Telescopic fork
- Rear suspension
- Swing arm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 275 mm
- Rear brakes
- Expanding brake (drum brake)
- Rear brakes diameter
- 130 mm
- Front tyre
- 130/80-18
- Rear tyre
- 180/80-14
Other
- Color options
- Black, white
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 | 2007 | 2009 | 2012 | 2014 | 2016 |
|---|---|---|---|---|---|
| Capacity | 125 cc | 124 cc | 124 cc | 124 cc | 125 cc |
| Dry weight | 125 kg | 125 kg | 125 kg | 125 kg | 135 kg |
| Seat height | 790 mm | 790 mm | 790 mm | 790 mm | 790 mm |
| Fuel capacity | 9.1 L | 8 L | 8 L | 9.1 L | 9.1 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 Hyosung RT125D?
The 2012 Hyosung RT125D has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the Hyosung RT125D have?
The 2012 Hyosung RT125D has a Power of 13.5 HP (9.9 kW) @ 10000 RPM.
How many gears does the Hyosung RT125D have?
The 2012 Hyosung RT125D has a Gearbox of 5-speed.
How much does the Hyosung RT125D weigh?
The 2012 Hyosung RT125D has a Dry weight of 125.0 kg (275.6 pounds).
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