GasGas EX 300 2024
Enduro
293cc
2-stroke
226lb
dry weight
37.6in
Seat height
11.8in
Front travel
6spd
Gearbox
The machine
The 2024 GasGas EX 300 sits in the EX lineup as a dedicated off‑road dirt bike designed for aggressive riding on demanding terrain. The bike features a hydraulically actuated clutch that self‑adjusts, a left‑side shift lever with neutral between first and second gears, and a throttle body equipped with a cold start button to aid cold starts. Idle speed is set with a dedicated idle speed adjusting screw, and the fuel system is accessed via a fuel tank filler cap that for EX models is released with a press/lock mechanism before turning counterclockwise. The instrument cluster tracks engine hours, and the service hour counter starts with engine operation. Safety and maintenance are underscored with clear guidelines on protective gear, proper use, and strict adherence to service intervals. Serial numbers and vehicle identifiers are provided for reference, including VIN and engine numbers, and the manual outlines specific locations for these identifiers. Additionally, the bike offers practical features like a plug‑in stand for parking and a left‑side side stand that must be folded away during riding.
Who should ride it
This bike targets riders who want a purpose‑built EX dirt bike for off‑road use. It appeals to riders who value a compact, responsive chassis, hydraulic clutch operation, precise shift action, and reliable, instrumented feedback (hours‑based servicing and diagnostic indicators). The EX 300 suits experienced riders who ride dirt trails or compete in off‑road events and want a bike with straightforward maintenance cues and clearly labeled controls and controls locations.
Tech specs
- Displacement
- 293cc
- Stroke
- 2-stroke
- Fuel system
- Fuel injection
- Bore × stroke
- 72 × 72 mm
- Cooling
- Liquid
- Configuration
- Single-cylinder
- Valve train
- reed intake and exhaust control
- Valves
- 2
- Oil chamber
- Dual
- Engine oil
- 0.8 L
- Oil type
- 15W-50
- Coolant
- 1.2 L
- Type
- Wet multiplate
- Actuation
- Hydraulic
- Assist
- Manual
- Starting
- Electric
- Transmission
- 6-speed
- Chain size
- 520
- Front sprocket
- 14T
- Rear sprocket
- 49T
- Dry weight
- 226.2 lb
- Seat height
- 37.6″
- Ground clearance
- 14″
- Wheelbase
- 58.8″
- Fuel capacity
- 2.38 gal
- Frame material
- Chromoly
- Architecture
- Central tube
- Rake
- 26.1°
- Front
- WP Closed Cartridge
- Front travel
- 11.8″
- Rear
- WP XACT LDS
- Rear travel
- 11.8″
- Front wheel
- 21″
- Rear wheel
- 18″
- Front tire
- 80/100-21 51M TT Dunlop GEOMAX MX 33 F
- Rear tire
- 110/100-18 64M TT Dunlop GEOMAX AT 81
- Front disc
- 260 mm
- Rear disc
- 220 mm
- Map switch
- Yes
- Radiator fan
- No
- Street legal
- No
- Battery
- Yes
- OEM battery
- HJTZ5S-FP-C
- Chemistry
- Lithium
- Voltage
- 12V
- Capacity
- 2 Ah
Pit-lane questions
- 01
How do you open the fuel tank filler cap on the EX 300?
For EX models, press the release button, turn the cap counterclockwise, and lift it off.
- 02
Where is the vehicle identification number located on the EX 300?
The VIN is stamped on the right side of the steering head; example VIN shown is 401945-10.
- 03
Where can I find the engine number on the EX 300?
The engine number is embossed on the left side of the engine above the engine sprocket (example: H01047-10).
- 04
Where is the shift lever and where is neutral located?
The shift lever is mounted on the left of the engine; neutral or idle position is between the first and second gears.
- 05
What does the cold start button do on a cold engine?
The cold start button extends the injector time when the engine is cold; you push it in, briefly open the throttle, then release and it returns to its basic position.
- 06
How do I adjust idle speed on the EX 300?
Use the idle speed adjusting screw; turn clockwise to increase idle speed and counter‑clockwise to decrease.
- 07
Where are the plug‑in stand and side stand located, and how are they used?
The plug‑in stand is on the left side of the wheel spindle and is used to park or lock the forks for transport; remove it before riding. The side stand is on the left side of the vehicle and must be folded up during riding.
- 08
What does the malfunction indicator lamp mean on the EX 300?
The malfunction indicator lamp lights up or flashes orange when the onboard diagnostics (OBD) detects a fault in the vehicle electronics.
- 09
What safety and maintenance basics should I follow with this bike?
Operate the vehicle only as intended, wear proper protective clothing, and have any safety‑critical issues fixed by an authorized GASGAS workshop. Adhere to run‑in times and service intervals as described in the Owner’s Manual.