2017GAS GAS EC300

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The 2017 GAS GAS EC300 is a big-bore two-stroke enduro bike from the Spanish brand GAS GAS. Its liquid-cooled 299.3cc single makes 50 hp through a six-speed gearbox and chain. A 960 mm seat, 115 kg wet weight and a 10.5-litre tank suit demanding off-road riding.

Capacity: 299.3 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 107.0 kg
Seat height: 960 mm
Power: 50.0 HP (37.3 kW)

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What’s new for the 2017 GAS GAS EC300

vs the 2016

Spec	2016	2017
Power	29.9 HP (22.0 kW)	50.0 HP (37.3 kW)
Dry weight	102.0 kg (224.9 pounds)	107.0 kg (235.9 pounds)

Other years 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail95%

Cornering55%

City riding25%

Daily riding25%

Touring30%

Two-up10%

Track40%

Best for: Built primarily for serious trail riding, technical enduro, and off-road competition rather than road use.
Built for: A punchy, high-revving big-bore single with sharp throttle response and race-derived suspension for tackling rough terrain.
Not ideal for: Not a good fit for shorter riders, beginners, or anyone wanting a comfortable road-going or passenger-friendly machine.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 960mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2017 GAS GAS EC300, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 299.3 ccm
Power: 50.0 HP (37.3 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.4673 HP/kg (dry)
Bore x stroke: 72.5 x 72.5 mm
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: Digital magnetic flywheel Kokusan.
Lubrication system: 2-stroke-oil/fuel mixed 1:50
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet multiplate with hydraulic control

Dimensions & weight

Wheelbase: 1475 mm
Overall length: 2200 mm
Overall width: 820 mm
Overall height: 1260 mm
Seat height: 960 mm
Dry weight: 107.0 kg
Wet weight: 115.0 kg
Fuel capacity: 10.50 litres
Ground clearance: 340 mm

Chassis & suspension

Frame: Chrom-Molybdenum perimetral frame
Front suspension: Sachs 48 mm Up-Side-Down. Adjustable compression and rebound.
Rear suspension: Sachs hydraulic mono shock absorber. Rebound, compression and spring preload .
Front wheel travel: 315 mm
Rear wheel travel: 320 mm

Brakes & wheels

Front brakes: Single disc. Wave floating, 2-piston caliper
Front brakes diameter: 260 mm
Rear brakes: Single disc. Wave disc, 1-piston caliper
Rear brakes diameter: 220 mm
Front tyre: 90/90-21
Rear tyre: 140/80-18

Other

Color options: Red/black/white

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2002	2008	2015	2017	2021	2027
Capacity	295 cc	294 cc	299 cc	299 cc	293 cc	293 cc
Dry weight	103 kg	99 kg	102 kg	107 kg	106 kg	108 kg
Seat height	940 mm	940 mm	960 mm	960 mm	950 mm	956 mm
Fuel capacity	9.5 L	9.5 L	10.5 L	10.5 L	8.5 L	9 L