Gilera 50 GP [2002 - 2003]: A Pocket-Sized Powerhouse Revisited

Introduction

The early 2000s were a golden era for small-displacement motorcycles that punched above their weight, and the Gilera 50 GP (2002-2003) stands out as a legend in the 50cc category. Designed to straddle the line between sporty aggression and off-road capability, this two-stroke machine was more than just a starter bike—it was a statement. Whether you’re a seasoned rider looking for a nostalgic throwback or a new enthusiast curious about vintage 50cc icons, the Gilera 50 GP generation remains a fascinating study in lightweight engineering. Let’s dive into what makes this motorcycle tick—and why it still turns heads today.

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Design: Form Follows Function (and Fun)

The Gilera 50 GP’s design ethos screams “minimalism with purpose.” Weighing in at just 89–96 kg (196–227 lbs) depending on the variant, its featherlight frame is a masterclass in agility. The seat height—845 mm (33.3 inches)—might intimidate shorter riders, but it’s a trade-off for the bike’s commanding stance, especially in its Enduro-focused iterations like the Gilera H@K 50.

The sportier GP50 Poggiali variant leans into racing aesthetics with its bold livery and inverted hydraulic fork, while the GSM 50’s double-cradle frame hints at durability for off-road thrashing. Details like the 7.25L (1.92-gallon) fuel tank (on the Poggiali) and slim bodywork keep the profile tight, but don’t mistake simplicity for blandness. The Poggiali’s “replica-only” color schemes—a nod to racer Manuel Poggiali—add a dash of motorsport flair.

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Engine and Performance: Two-Stroke Thunder

The Heart of the Beast

At its core lies a liquid-cooled, single-cylinder two-stroke engine displacing 49–50cc, depending on the model. Don’t let the small size fool you: this mill churns out 13.9 HP at a screaming 8,500 RPM (or up to 14,000 RPM on the Poggiali). The six-speed gearbox is a rarity in the 50cc world, giving riders precise control over the powerband.

On the Road (and Off)

Twist the throttle, and the Gilera rewards you with a signature two-stroke bark and immediate punch. The Poggiali variant tops out at 88.5 km/h (55 mph), while the Enduro-focused H@K 50 reportedly hits 115 km/h (71.5 mph)—numbers that still feel exhilarating today. The secret? A mix of aggressive gearing and that free-revving two-stroke character.

The carbureted fuel system (with a carb heater on the Poggiali) ensures reliability in chilly conditions, and the electric/kick starter combo means you’re never stranded. That said, the engine’s appetite for premixed oil and its love for high RPMs demand mechanical sympathy. This isn’t a “fire and forget” machine—it’s a rider’s bike.

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On the Road: Riding Impressions

Urban Playground

In city traffic, the Gilera 50 GP feels like a predator. The narrow chassis slips through gaps, and the 89-kg dry weight (Poggiali) makes U-turns a joke. The upright riding position (on Enduro models) offers visibility, while the sportier Poggiali’s tucked stance channels its road-racing DNA.

Off-Road Credentials

Take the H@K 50 onto gravel, and the 80/90-21 front tire and long-travel suspension (compared to the street-focused Poggiali) prove their worth. The 185mm disc brakes—basic by today’s standards—deliver enough bite for controlled slides.

Highway? Not Quite

At 70+ km/h, vibrations seep through the bars, and the lack of wind protection reminds you this isn’t a tourer. But that’s missing the point. The Gilera 50 GP thrives in short, adrenaline-fueled bursts—think backroad blasts or urban sprints.

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Competition: How Does It Stack Up?

Derbi GPR 50

The Derbi GPR 50 was the Gilera’s archrival, sharing similar DNA (and even frame parts, per the Poggiali’s specs). The Derbi’s slightly taller gearing gave it a edge in top speed, but the Gilera’s carb heater and liquid cooling made it more versatile in variable weather.

Aprilia RS 50

Aprilia’s RS 50 prioritized street performance with sharper styling and a larger front brake disc. However, the Aprilia’s air-cooled engine couldn’t match the Gilera’s liquid-cooled consistency during prolonged thrashing.

Yamaha DT50R

Yamaha’s DT50R focused on off-road simplicity with a air-cooled engine and softer suspension. The Gilera’s liquid cooling and six-speed gearbox made it the more technically advanced choice, albeit pricier to maintain.

Verdict: The Gilera 50 GP carved a niche with its balance of tech and aggression. It wasn’t the fastest or the cheapest, but its racing pedigree and adaptability gave it a cult edge.

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Maintenance: Keeping the Legend Alive

Two-Stroke TLC

• Oil Mixing: Precision is key. Use high-quality synthetic two-stroke oil at the manufacturer’s recommended ratio.
• Cooling System: Flush the liquid cooling system annually to prevent corrosion—critical for avoiding overheating meltdowns.
• Carburetor Care: The Poggiali’s carb heater is a lifesaver in cold climates. Clean the carb jets regularly to maintain throttle response.

Chassis Checks

• Suspension: Inspect fork seals and rear shock linkages for leaks, especially if ridden hard off-road.
• Chain & Sprockets: The 6-speed box puts stress on the chain. Lubricate every 500 km and replace worn sprockets promptly.

Brakes & Tires

• Discs & Pads: Single discs front/rear lack modern bite. Upgrade to sintered pads (available at MOTOPARTS.store) for better stopping power.
• Tire Upgrades: The Poggiali’s 90/80-17 front and 120/80-17 rear tires prioritize grip. For mixed terrain, consider dual-sport rubber.

MOTOPARTS.store Recommendations

• Performance Exhaust: Unlock hidden power with an aftermarket expansion chamber.
• LED Lighting Kit: Enhance visibility for night rides.
• Upgraded Air Filter: Boost airflow while keeping dirt out of that precious two-stroke.

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Conclusion: A Bite-Sized Icon

The Gilera 50 GP [2002–2003] generation is a time capsule of an era when 50cc bikes were more than just commuters—they were passports to freedom. Its blend of race-bred tech, snarling two-stroke performance, and chameleon-like versatility (depending on the variant) ensures it remains relevant. Whether you’re restoring one or daily-riding it, this Gilera demands engagement—and rewards it with grins per mile that few modern bikes can match.

At MOTOPARTS.store, we’re here to keep your Gilera 50 GP roaring. From carb rebuild kits to period-correct decals, we’ve got the parts to honor this pocket rocket’s legacy. Ride hard, rev higher, and let that two-stroke sing.

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Specifications sheet

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