The Hyosung ST7 is a cruiser motorcycle from the 2013 to 2014 production years. It features a four-stroke, 90-degree V twin engine with a capacity of 647cc and a liquid cooling system. The engine has a compression ratio of 11.6:1 and is lubricated by a wet sump, using semi-synthetic 10W/40 engine oil. The fuel injection system is operated by digital CDI ignition that uses NGK CR8E spark plugs. The bike has a maximum power output of 47 kW or 63 horsepower at 8250rpm and a maximum torque of 58 Nm or 42.7 lb-ft at 7500rpm. The clutch is wet and has multiple discs which are operated using a cable system. The motorcycle has a six-speed transmission and uses a belt for its final drive. It has a steel, double pipe frame and a conventional 41mm front suspension. The suspension dual shock is adjustable for preload. The front uses 2x 300mm discs for braking, while the rear has a single 230mm disc. Both tires are tubeless with the front tire size of 120/80-16 and the rear being 170/80-15. The bike is 2470mm long, 960mm wide, and 1135mm tall, with a wheelbase of 1690mm and a ground clearance of 160mm. The seat height is 675mm. The dry weight is 229kg, while the wet weight is 244kg. The fuel capacity is 17 litres or 4.5 US gallons.
Technical specifications:
Make Model: Hyosung ST7
| Year | 2013 – 14 |
|---|---|
| Engine | Four stroke, 90 degrees V twin, DOHC, 4 valve per cylinder. |
| Capacity | 647 cc / 39.4 cu-in |
| Bore x Stroke | 81.5 x 62 mm |
| Cooling | Liquid cooled |
| Compression Ratio | 11.6:1 |
| Lubrication | Wet sump |
| Engine Oil | Semi-Synthetic, 10W/40 |
| Induction | Fuel injection |
| Ignition | Digital CDI |
| Spark Plug | NGK, CR8E |
| Starting | Electric |
| Max Power | 47 kW / 63 hp @ 8250rpm |
| Max Torque | 58 Nm / 42.7 lb-ft @ 7500rpm |
| Clutch | Wet, multiple discs, cable operated |
| Transmission | 6 Speed |
| Final Drive | Belt |
| Frame | Steel, double pipe |
| Front Suspension | 41mm Conventional |
| Rear Suspension | Suspension Dual shock / adjustable preload |
| Front Brakes | 2x 300mm discs |
| Rear Brakes | Single 230mm disc |
| Front Tyre | 120/80 -16 |
| Rear Tyre | 170/80 -15 |
| Dimensions | Length 2470 mm / 97.2 in Width 960 mm / 37.7 in Height 1135 mm / 44.6 in |
| Wheelbase | 1690 mm / 66.54 in |
| Ground Clearance | 160 mm / 6.2 in |
| Seat Height | 675 mm / 26.2 in |
| Dry Weight | 229 kg / 504 lbs |
| Wet Weight | 244 kg / 538 lbs |
| Fuel Capacity | 17 Litres / 4.5 US gal |
