Derbi Variant Sport 50 [2012-2018]: A Lively Urban Companion for the Two-Stroke Enthusiast
Introduction
The Derbi Variant Sport 50, produced between 2012 and 2018, is a scooter that embodies the spirit of Mediterranean flair and practicality. Designed for urban riders who crave a mix of style, simplicity, and zippy performance, this Spanish-made two-stroke machine carved its niche in the competitive 50cc segment. Whether you’re a teenager navigating city streets for the first time or a seasoned commuter dodging traffic, the Variant Sport 50 offers a distinct personality that’s hard to ignore. Let’s dive into what makes this scooter tick—and why it still resonates with riders today.
Design & Styling
Derbi nailed the "sporty commuter" aesthetic with the Variant Sport 50. Its angular bodywork, sharp lines, and aggressive front fascia give it a dynamic stance that stands out in a sea of bland urban scooters. The color options—red/white, black, and pure white—pop under sunlight, with decals and accents emphasizing its racing-inspired heritage.
The black 5-spoke or 6-spoke rims (depending on model year) add a touch of sophistication, while the compact dimensions (1,820–1,950 mm long, 740 mm wide) make it ideal for filtering through traffic. The seat height of 775 mm (30.5 inches) is accessible for shorter riders, and the two-person seat strikes a balance between comfort and practicality. Storage-wise, the under-seat compartment fits a helmet or groceries, though you’ll need aftermarket racks for heavier loads.
Engine & Performance
The Heart of a Pocket Rocket
At its core lies a 49.9cc single-cylinder two-stroke engine—a configuration that’s increasingly rare in today’s eco-conscious world. With 5.8 HP @ 7,500 RPM, this air-cooled powerplant isn’t about raw speed (top speed hovers around 45–50 km/h or 28–31 mph), but rather about punchy acceleration. Twist the throttle, and the Variant Sport 50 leaps forward with a characteristic two-stroke whine, thanks to its carburetor setup (Keihin or Arbeo, depending on year).
The engine’s simplicity is a double-edged sword. While it lacks the refinement of four-strokes, it rewards riders with mechanical engagement. The kickstarter (and later electric start) adds a nostalgic touch, though cold starts might require patience. Fuel efficiency averages around 30–35 km/l (70–82 mpg), but this depends heavily on how hard you exploit that two-stroke grin factor.
Transmission: Belt vs. Shaft Drive
Early models (2012–2015) used a shaft drive (cardan), which reduced maintenance but added weight. Later iterations switched to a belt drive, shedding kilograms and improving responsiveness. Both systems paired with an automatic centrifugal clutch ensure hassle-free urban riding—no gear shifting required.
Riding Experience
Urban Agility
The Variant Sport 50 shines in cityscapes. The 120/70-14 tires (later 120/70-12 on 2018 models) provide surprising grip, and the lightweight chassis (99–105 kg / 218–231 lbs) lets you flick it through traffic with ease. The telescopic front fork and rear shock offer 76–85 mm (3.0–3.3 inches) of travel—enough to absorb potholes without feeling mushy.
Braking is adequate, with a front disc brake providing solid bite and a rear drum for gradual stopping. It’s not a track tool, but the setup inspires confidence during sudden stops.
Ergonomics & Comfort
The flat seat is firm but spacious, and the upright riding position keeps your back happy during 30-minute commutes. At highway speeds, the lack of wind protection becomes apparent, but this scooter wasn’t built for touring.
Competition
How does the Derbi stack up against rivals? Let’s compare:
1. Aprilia SR 50
- Pros: Liquid-cooled engine, sportier design.
- Cons: Higher maintenance costs, less accessible seat height.
- Variant’s Edge: Simplicity and lower weight.
2. Peugeot Speedfight 4
- Pros: Legendary reliability, vibrant aftermarket.
- Cons: Less aggressive styling.
- Variant’s Edge: Two-stroke character and Spanish flair.
3. Yamaha Aerox 50
- Pros: Yamaha build quality, liquid cooling.
- Cons: Generic looks, higher price.
- Variant’s Edge: Unique personality and carburetor tunability.
While the Derbi isn’t the fastest or most tech-laden, its analog charm and mod-friendly design make it a favorite for tinkerers.
Maintenance
Keeping the Two-Stroke Alive
Owning a Variant Sport 50 means embracing its mechanical soul. Here’s what to watch:
- Oil Mix & Lubrication
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The mechanical oil pump requires regular checks. Use high-quality 2T oil (synthetic recommended) to prevent piston seizures.
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Carburetor Care
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Clean the Keihin/Arbeo carburetor annually. Ethanol-blended fuels can clog jets—add a stabilizer if storing the scooter.
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Spark Plugs
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NGK BR8ES or BR8HIX plugs are critical for smooth ignition. Replace every 3,000 km (1,864 miles).
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Tire Pressure
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Maintain 1.8 bar (26 psi) front and 2.0–2.2 bar (29–32 psi) rear for optimal grip and longevity.
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Belt Drive Maintenance
- Post-2015 models: Inspect the belt for cracks every 5,000 km (3,107 miles).
MOTOPARTS.store Recommendations
- Upgrade to a performance exhaust for better airflow and a throatier sound.
- Swap stock tires for Pirelli Angels if you ride in wet conditions.
- Install a steel-braided brake line to enhance front brake feel.
Final Thoughts
The Derbi Variant Sport 50 is a love letter to an era when scooters were raw, lightweight, and unapologetically fun. Its two-stroke engine demands attention, but rewards with a ride that’s engaging in ways modern four-strokes can’t match. While it won’t win drag races, its agility, style, and mod potential make it a standout in the 50cc class.
For owners looking to personalize or maintain their Variant Sport 50, MOTOPARTS.store offers a curated selection of upgrades and OEM-quality parts—from carburetor kits to eye-catching decals. Keep the spirit of this Spanish icon alive, one smoky two-stroke ride at a time.
