2010 Hyosung ST7 First Look

March 10, 2010
By Melody DeKorte and Bryan Harley
The 2010 Hyosung ST7 is offered in black  red or white and lists for  7 299.
Hyosung Motors throws it hat into the entry-level, classically styled cruiser arena with the introduction of the 2010 ST7.

Hyosung Motors, the largest motorcycle manufacturer in Korea, is looking to make its presence felt in the entry-level cruiser market with the introduction of its 2010 ST7.

Sourcing a liquid-cooled 90-degree V-Twin, the ST7 pistons will work in a good-sized bore for its class at 3.21 in. and 2.56-in. stroke. The 678.2cc mill compresses its gas/air mixture at a 11.5:1 ratio (the 2010 Honda Shadow Phantom we recently tested has a 9.6:1 compression ratio). The fuel-injected 90-degree V-Twin is claimed to produce 62 hp @ 8,000 rpm and 47 lb-ft @ 7,500 rpm. If these numbers are true, beside its high compression ratio, the ST7 will be a high revving engine for its class as well. The Honda Phantom Shadow we dynoed that sources a larger 745cc engine was good for 35.6 hp @ 5,600 rpm and 39.8 lb-ft of torque at @ 4,400 rpm.

The 2010 ST7 is powered by a 678cc  90-degree V-Twin with DOHC and 8-valves per cylinder.
The 2010 ST7 is powered by a 678cc, 90-degree V-Twin with DOHC and four-valves per cylinder.

The Hyosung 2010 ST7 has comparable styling cues to its Japanese counterparts, which the Korean company identifies as its immediate competition. The ST7’s fuel tank is wide and voluminous for an entry-level cruiser at 4.7 gallons and in true classic cruiser fashion its speedo and gauges sit in a chrome tank-mounted console. The front end has a traditional 41mm telescopic fork set at a healthy 33-degree rake angle while the rear features Dyna-style, preload adjustable double shocks. Its classic lines are completed by a set of meaty tires that are enveloped by large, sweeping fenders. An attractive set of dual pipes streaking down its right side completes an overall stylish cruiser platform.

Forward-mounted foot controls, a 27.2 in. seat height, and broad pullback handlebars should leave riders in a familiar cruiser riding position. The leather seat appears to be contoured and well-padded, and a small leather pillion and passenger footpegs means it’s capable of bringing a friend along for the ride.

There was a call for a classically styled version of our popular cruiser. We answered it  said Hyosungs Brian Rose.
Hyosung hopes to cut into a share of the entry-level cruiser market with its ’10 ST7.

Completing the powertrain package is a five-speed transmission and a belt final drive. To rein in the action, a 300mm single disc with hydraulic 4-piston calipers provides the stopping power up front while a 270mm disc with a hydraulic pin slide 2-piston caliper does the job out back. A claimed curb weight of 505 lbs means its 16.5 lbs more svelte than the Honda Shadow Phantom and combined with its generous 6.1 inches of ground clearance should add up to a cruiser that is light handling and doesn’t scrape pegs easily when tilted into turns.

Hyosung also plans on releasing a touring capable variation called the ST7 Deluxe. It will come equipped with a tall windscreen, saddlebags, floorboards and a heel/toe shifter. The ST7 Deluxe will also have better passenger accommodations including a backrest and a pillion footrest. The final upgrades include a new tank panel and engine guards.

2010 Hyosung ST7 Specs
With a wide tank  pullback handlebars and sweeping fenders  Hyosungs ST7 has the classic styling cues capable of attracting riders looking for an entry-level cruiser.
Engine: 678.2 cc liquid-cooled 90 degree V-Twin
Bore/Stroke: 81.5mm x 65mm
Compression Ratio: 11.5:1
Valve Train: DOHC, 8 valves
Fuel System: Fuel Injection
Transmission: Five-speed
Final Drive: Belt
Rake (Caster Angle): 33 degrees
Trail: 5.59 in.
Front Suspension: Conventional 41mm telescopic
Rear Suspension: Hydraulic dual shocks with preload adjustability
Front Brake: Single disc with floating four-piston caliper
Rear Brake: Single disc with twin-piston caliper
Front Tire: 120/80/16
Rear Tire: 170/80/15
Wheelbase: 66.54 in.
Seat Height: 27.17 in.
Fuel Capacity: 4.75 gal.
Curb Weight (claimed, wet): 538 lb
Colors: Black, Red, White
MSRP: $7,299

The ST7 is based on Hyosung’s popular performance GV650 platform which sports more of a V-Rod look.

“Consumers and industry people alike were very impressed with what out GV650 offered. Still, there was a call for a classically styled version of our popular cruiser. We answered it,” said Hyosung Regional Sales Manager, Brian Rose.

Consumers will have a choice of three different colors, black, red or white. The 2010 ST7 is priced at $7,299 and comes with a two-year warranty.

Hyosung Motors America Inc. is a division of S& T Motors. Since 1978, S&T Motors has been committed to advancing motorcycle technologies to meet or exceed its customers’ demands. It established Hyosung Motors America in 2005 and ventured into the US market expanding from simple and efficient commuting bikes into the highly competitive recreational market.