Cruisers
2012Hyosung ST7
36 fields on record
The 2012 Hyosung ST7 is a middleweight cruiser that appeals to riders seeking an affordable, stylish alternative to established brands. Powered by a 678cc V-twin four-stroke engine producing 79 horsepower, it delivers smooth torque suitable for relaxed riding and moderate commuting. Best known for combining classic cruiser aesthetics with modern fuel injection technology at an accessible price point.
- Capacity
- 678.2 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 244.0 kg
- Seat height
- 675 mm
- Power
- 79.0 HP (58.1 kW) @ 9000 RPM
What’s new for the 2012 Hyosung ST7
vs the 2010| Spec | 2010 | 2012 |
|---|---|---|
| Power | 61.7 HP (46.0 kW) @ 8000 RPM | 79.0 HP (58.1 kW) @ 9000 RPM |
| Torque | — | 67.0 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 7250 RPM |
| Dry weight | 229.0 kg (504.9 pounds) | not listed |
| Seat height | 690 mm (27.2 inches) | 675 mm (26.6 inches) |
| Fuel capacity | 18.00 litres (4.76 US gallons) | 17.00 litres (4.49 US gallons) |
| Front suspension | 41Ø Conventional telescopic fork | Conventional Telescopic fork |
| Rear suspension | Swing arm, Hydraulic double shock absorber (preload adjustable) | Swing arm with Hydraulic Double shock absorber (Preload adjustable) |
| Front brakes | Single disc | Double disc. Semi floating single disc, 4 pistons caliper |
| Rear brakes | Single disc | Single disc. 2 pistons caliper |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for relaxed boulevard cruising and weekend rides where laid-back style and V-twin character matter more than outright performance.
- Built for
- A classic custom-cruiser feel with a punchy DOHC V-twin, belt final drive smoothness, and enough midrange torque to feel muscular without being intimidating.
- Not ideal for
- Not the right choice for riders wanting sharp cornering agility, off-road capability, or serious high-speed sport 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
- 678.2 ccm
- Power
- 79.0 HP (58.1 kW) @ 9000 RPM
- Torque
- 67.0 Nm (6.8 kgf-m) @ 7250 RPM
- Engine type
- V-Twin, four-stroke
- Power/weight ratio
- 0.3238 HP/kg (wet)
- Bore x stroke
- 81.5 x 65.0 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Belt
- Clutch
- Wet, Multiplate
Dimensions & weight
- Wheelbase
- 1690 mm
- Overall length
- 2470 mm
- Overall width
- 960 mm
- Overall height
- 1135 mm
- Seat height
- 675 mm
- Wet weight
- 244.0 kg
- Fuel capacity
- 17.00 litres
- Ground clearance
- 155 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Front suspension
- Conventional Telescopic fork
- Rear suspension
- Swing arm with Hydraulic Double shock absorber (Preload adjustable)
- Rake (fork angle)
- 33.0°
- Trail
- 142 mm
Brakes & wheels
- Front brakes
- Double disc. Semi floating single disc, 4 pistons caliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. 2 pistons caliper
- Rear brakes diameter
- 270 mm
- Front tyre
- 120/80-16
- Rear tyre
- 170/80-15
Other
- Color options
- Black, red, white
Specs last verified against published sources: .
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 | 2010 | 2012 | 2013 | 2014 | 2016 | 2017 |
|---|---|---|---|---|---|---|
| Capacity | 678 cc | 678 cc | 678 cc | 678 cc | 678 cc | 678 cc |
| Dry weight | 229 kg | — | — | — | — | — |
| Seat height | 690 mm | 675 mm | 675 mm | 675 mm | 675 mm | 675 mm |
| Fuel capacity | 18 L | 17 L | 17 L | 17 L | 17 L | 17 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 ST7?
The 2012 Hyosung ST7 has a Capacity of 678.2 ccm (41.39 cubic inches).
What engine power does the Hyosung ST7 have?
The 2012 Hyosung ST7 has a Power of 79.0 HP (58.1 kW) @ 9000 RPM.
How many gears does the Hyosung ST7 have?
The 2012 Hyosung ST7 has a Gearbox of 5-speed.
What is the torque of the Hyosung ST7?
The 2012 Hyosung ST7 has a Torque of 67.0 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 7250 RPM.
How much does the Hyosung ST7 weigh?
The 2012 Hyosung ST7 has a Wet weight of 244.0 kg (537.9 pounds).
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