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All Bikes/GASGAS/EC 300 Factory
GASGAS EC 300 Factory
Dirt

GASGAS EC 300 Factory

The GASGAS EC 300 Factory has a top speed of ~85 mph (off-road limited), produces ~38-40 hp (estimated) and weighs ~105 kg.

~38-40 hp (estimated)

Power

~35 Nm (estimated)

Torque

~105 kg

Weight

~85 mph (off-road limited)

Top Speed

Naked

Body

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What Buyers Should Know

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Factory Spec Build

The EC 300 Factory edition receives premium factory-level components including upgraded suspension and exclusive finishes not found on the standard model.

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Unconfirmed 2026 Data

As of mid-2025, GASGAS has not officially published full specifications for the 2026 EC 300 Factory. Data presented here is estimated based on prior model years.

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Two-Stroke Enduro Heritage

The EC 300 carries on GASGAS's renowned two-stroke enduro lineage, sharing platform development with KTM and Husqvarna under the Pierer Mobility Group.

Top 10 Accessories

Curated picks for the GASGAS EC 300 Factory — owned, ridden, recommended.

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Common Problems

🔥 2 CRITICAL
🔥Power valve seizure or sticky operation SERIOUS

Remove cover, manually actuate valve, inspect for carbon buildup

Fix cost: $150-$400
⚠️Coolant leaks from water pump seals MODERATE

Look for white residue below water pump housing

Fix cost: $80-$180
🔥Top end wear from neglected rebuilds SERIOUS

Check compression, inspect reed valves, ask rebuild history

Fix cost: $200-$500
⚠️Radiator damage from tip-overs MODERATE

Inspect fins, pressure test, check for coolant loss history

Fix cost: $150-$350

Pre-Purchase Checklist

Pull power valve cover, check for carbon
Cold start test, listen for piston slap
Check frame for cracks near linkage
Verify jetting matches riding altitude

Solid bike, maintenance-dependent, inspect power valve first

Full Specifications

Engine Power ~38-40 hp (estimated)
Torque ~35 Nm (estimated)
Top Speed ~85 mph (off-road limited)
Weight ~105 kg (231 lbs) estimated
Type Dirt
Fairing No Fairing (Naked)

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Community Reviews

Discussion

Frequently Asked Questions

What are common problems with the GASGAS EC 300 Factory? +

Power valve seizure or sticky operation: Remove cover, manually actuate valve, inspect for carbon buildup (serious) | Coolant leaks from water pump seals: Look for white residue below water pump housing (moderate) | Top end wear from neglected rebuilds: Check compression, inspect reed valves, ask rebuild history (serious)

What is the horsepower of the GASGAS EC 300 Factory? +

The GASGAS EC 300 Factory produces ~38-40 hp (estimated), with ~35 Nm (estimated) of torque. Top speed: ~85 mph (off-road limited).

Is the GASGAS EC 300 Factory good for beginners? +

Yes — the GASGAS EC 300 Factory is a reasonable choice for new riders (38 hp is manageable), weighing 105 kg.

Is the GASGAS EC 300 Factory reliable? +

Owners report 2 critical issues to watch for on the GASGAS EC 300 Factory, notably: Power valve seizure or sticky operation (Remove cover, manually actuate valve, inspect for carbon buildup). Buy with a pre-purchase inspection.

Is the GASGAS EC 300 Factory good for daily use? +

Suited for daily dirt use.

How fast is the GASGAS EC 300 Factory? +

The GASGAS EC 300 Factory reaches a top speed of ~85 mph (off-road limited), producing 38 hp at 105 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.

What is the seat height of the GASGAS EC 300 Factory? +

The GASGAS EC 300 Factory has a seat height of ~37.0 in (940 mm) estimated — accessible to shorter riders (under 170 cm / 5'7" should manage flat-foot or near-flat-foot).

What gear should I buy for a GASGAS EC 300 Factory? +

Motoryk has curated a Top 10 gear list specifically for the GASGAS EC 300 Factory, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/gasgas/ec-300-factory/top10. Each pick is matched to this bike's spec.