Hyosung ST 700 [2010–2019]: A Korean Cruiser with American Soul

Introduction

The Hyosung ST 700 series (also marketed as the ST7 and ST700i) represents South Korea’s boldest attempt to channel the spirit of American cruiser culture. Produced from 2010 to 2019, this V-twin-powered machine blends classic chopper aesthetics with modern engineering, offering riders an accessible entry into the world of laid-back, long-haul cruising. With its low-slung profile, rumbling exhaust note, and chrome-laden design, the ST 700 generation doesn’t just imitate the Harley-Davidson playbook—it adds its own Korean flair. After spending a week with a well-maintained 2017 ST7 Deluxe, here’s why this underdog deserves a second look.

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Design & First Impressions

The ST 700’s design is a love letter to 1960s Americana. From the swept-back handlebars to the slash-cut dual exhausts, every detail screams “chopper.” The 2470mm (97.2") stretched frame, 1690mm (66.5") wheelbase, and 26.6" seat height create a commanding presence—this bike looks heavier than its 244 kg (538 lbs) wet weight suggests. Chrome accents dominate the fuel tank, fenders, and engine covers, though closer inspection reveals some budget-friendly plastic components.

Deluxe variants add practical touring touches: a tall windshield, lockable saddlebags, and floorboards. The analog-LCD combo gauge (mounted atop the 17L fuel tank) is refreshingly simple compared to today’s TFT screens. Color options like “Pearl Red” and “Solid Black” stay true to cruiser traditions, though the paint quality can show swirl marks under harsh sunlight.

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Performance: V-Twin Heartbeat

Engine & Transmission

The 678cc, liquid-cooled, 90° V-twin is the star here. With 63–79 HP (depending on model year) peaking at 8,250–9,000 RPM and torque ranging from 58–67 Nm (42.7–49.4 lb-ft), it’s no drag racer—but that’s not the point. Throttle response is linear, with a satisfying growl from the dual exhausts that’s muted enough for city commuting but throaty at highway speeds.

The 5-speed gearbox (6-speed on earlier ST700i models) pairs with a belt final drive, minimizing maintenance hassles. Shifts are clunky when cold but smooth out after 10 minutes of riding. At 120 km/h (75 mph), the engine hums at a relaxed 4,000 RPM, making it surprisingly fuel-efficient for a cruiser: expect 4.13 L/100 km (56.95 mpg) during mixed riding.

Handling & Braking

The ST 700’s 41mm telescopic forks and preload-adjustable dual rear shocks prioritize comfort over agility. It leans reluctantly into corners, and the 170/80-15 rear tire demands deliberate countersteering. That said, the low center of gravity inspires confidence at low speeds—a blessing in parking lots.

Braking is adequate but unremarkable. The dual 300mm front discs (4-piston calipers) lack initial bite, requiring a firm squeeze. ABS wasn’t available on any ST 700 model, so wet-weather riding demands caution.

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Comfort & Practicality

Hyosung nailed the cruiser ergonomics. The wide, padded seat (675mm/26.6" height) accommodates riders up to 6'2" comfortably, though the forward foot controls might cramp taller legs on long rides. Vibrations are minimal below 4,500 RPM, but the handlebars buzz noticeably at highway speeds—a common cruiser quirk.

The Deluxe’s windshield deflects wind effectively, reducing helmet buffeting. Saddlebags offer 25L of storage combined, enough for a weekend trip. Passenger accommodations are generous, though the rear suspension firms up noticeably with a pillion.

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Competition

The ST 700’s price originally positioned it against:

1. Honda Shadow Phantom (750cc):
2. Pros: Honda reliability, smoother shaft drive.
3. Cons: Less power (44 HP), dated air-cooling.

4. Verdict: The Shadow wins for low-maintenance ownership, but the ST 700 feels more modern.

5. Kawasaki Vulcan S (650cc):

6. Pros: Ergo-Fit adjustable components, sharper handling.
7. Cons: Parallel-twin lacks V-twin character.

8. Verdict: The Vulcan is the better bike technically, but the Hyosung has soul.

9. Suzuki Boulevard C50 (805cc):

10. Pros: Torquier engine, shaft drive.
11. Cons: Heavier (291 kg/641 lbs), higher seat.
12. Verdict: The Boulevard is a better tourer, but the ST 700 is nimbler in cities.

Hyosung’s Edge: Belt drive (vs. Honda/Suzuki chains), liquid cooling, and a 2-up seat standard.

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Maintenance

The ST 700 is straightforward to maintain but demands consistency:

1. Oil Changes: Use 10W-40 semi-synthetic every 5,000 km (3,100 mi). The wet sump holds 3.2L—easy DIY with a front stand.
2. Belt Drive: Inspect tension every 10,000 km (6,200 mi). Replace if cracks appear. MOTOPARTS.store stocks OEM-spec belts.
3. Valve Adjustments: Check every 12,000 km (7,500 mi). Intake: 0.10–0.20mm, exhaust: 0.20–0.30mm (cold).
4. Cooling System: Flush coolant every 2 years. Use ethylene glycol-based fluid.
5. Brakes: Swap pads when thickness drops below 2mm. Upgrade to sintered pads for better bite.

Common Upgrades:
- Aftermarket exhausts (for deeper tone)
- Progressive rear shocks (improves load handling)
- LED lighting kits (better visibility)

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Conclusion

The Hyosung ST 700 won’t dethrone Harley or Indian, but it’s a compelling choice for riders wanting cruiser style without the premium price tag. It’s a bike that rewards those who appreciate underdog stories—a machine that’s flawed but full of character. For owners, MOTOPARTS.store offers everything from OEM replacements to performance mods, ensuring your ST 700 ages as gracefully as the classics that inspired it.

Whether you’re customizing it into a boulevard showpiece or chasing sunsets on backroads, the ST 700 proves that the chopper spirit is alive—and now, it’s globally born.

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Specifications sheet

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