We like to think that our MC 350F is the ultimate modern-day motocrosser. Actually, we know that it is! Giving riders of all abilities the very best of everything – dirt-shredding power, lightweight handling, and super strong brakes – an updated frame for 2025 makes the best bike even better. Other revisions include new suspension settings, a redesigned air intake, and a new, stronger rear brake pedal. All subtle but important changes. Best of all, our MC 350F is just so easy and comfortable to ride that you’ll tick off the laps without breaking a sweat.
GRAPHICS
All-new graphics spice things up for 2025 with the GASGAS logo emblazoned in black rather than white for a fresh twist. Still red, still durable, and still eye-catching, the distinctive design is applied using IML technology. This means they’re applied within the bodywork so your GASGAS will stay looking super fresh for a long, long time, even if you ride in gnarly conditions week after week.
BODYWORK
All red, front to back! Incredibly ergonomic with large contact surfaces to help you grip the bike with your legs, the smooth profile bodywork encourages riders to effortlessly move around on the bike and ride with a perfect technique. There’s also a super grippy seat cover, in red of course, to keep you sat exactly where you need to be when you get on the gas!
HANDLEBARS
Get on the gas and hold on tight! Not too tight though as nobody likes arm pump… But to make sure the ride is comfortable, NEKEN handlebars are clamped into redesigned bar mounts (they’re more resistant to twisting if you should hit the deck), with lock-on style, medium compound ODI grips fitted to create a comfy set-up to suit all riders.
AIRBOX
Less time working on bikes means more time riding bikes, which is precisely why you’ll love the straightforward, no tools and no-nonsense filter mounting system. With a stronger one-piece design for the air intake in 2025, maximum airflow is guaranteed, and you know what that means… maximum power! Like before, accessing the air filter to inspect or replace it couldn’t be easier. Simply pop the left side panel off and you’ll be inside the airbox in no time.
FUEL TANK
The fuel tank sits neatly inside the vibrant red bodywork and for 2025 a beefier rubber tank support underneath helps hold it firmly in place while protecting the frame from wear. With an integrated fuel pump inside the tank allowing for it to be emptied further, long motos around deep sand tracks aren’t a problem for this GASGAS!
FOOTPEGS
Bigger is better when it comes to footpegs. That’s precisely why they not only have a larger surface area for maximum grip, but we’ve also made them less likely to catch on the edges of deep ruts, which mean no loss to forward momentum. The pegs are also light and prevent mud from building up. So, no matter how gnarly the track gets, you’ll stay in complete control.
FRAME
So much testing and development went into designing and building the frame last year, but our engineers have worked on refining things even further! Thanks to brand new, lighter, motor mounts, the flex characteristics of the frame are improved without any sacrifice to straight-line stability. Around the upper shock mount a little material has been removed while the wall thickness at the front of the frame is also slightly reduced, saving 300g. With all these revisions, which were tested by Red Bull GASGAS Factory Racing in MXGP, the bike is now much more settled through every corner.
SUBFRAME
The all-aluminium subframe is light, strong, and works as one with the new frame by helping to centralize mass and contributing massively to the bike’s outstanding handling characteristics.
TRIPLE CLAMPS
Forged aluminum triple clamps offer just the right amount of calculated flex thanks to a more forgiving steering stem. The triple clamps align the fork tubes perfectly for a smooth action, which improves front wheel feedback and leads to predictable handling on any track and any terrain. The adjustable bar mounts with the slightly larger contact area against the handlebars reduce the chance of the bars twisting. A glass bead blasted finish means the triple clamps always look as good as new.
WP FORKS
Updated frames for every GASGAS motocross model in 2025 means new settings for the 48mm, split air WP XACT forks. Continuing to be easily adjustable by hand on the outside, on the inside, a capsulated air spring and pressurized oil chamber take care of delivering consistent damping. By using an air spring, a customized set-up can be created easily as this bike includes an air pump to adjust the pressure. And, for those who like to go big on the jumps, a hydrostop in the forks help maintain forward momentum by taking the sting out of every heavy landing.
WP SHOCK
With no less than 300mm of travel, the WP XACT rear shock soaks up the biggest of bumps with ease. For 2025, the performance of the shock is taken up a notch thanks to the new, lower friction seals in the linkage and a smaller diameter linkage bolt, to reduce a little weight. Both revisions were put to the test in MXGP, so you know they’ll make a difference. Because of the new frame, the shock’s settings have been revised to deliver the best damping straight from the showroom floor. However, creating a customized set-up remains super simple as adjustments can still be made quickly by hand.
SWINGARM
Cast from one piece of aluminum, the swingarm on this GASGAS certainly looks the business! A new, stronger chain slider improves durability and keeps the chain running smoother for longer. At the rear of the swingarm you’ll find a chain guide with a rounded profile to help it glide over the ground as you lay the bike over through deeply rutted turns. Finally, clear chain adjustment markings ensure quick and easy maintenance.
MOTOR
The motor that does it all! In addition to its very usable torque curve and its ability to pump out plenty of free-revving power, the 350cc DOHC motor also helps enhance overall handling. Positioned in the frame for a calculated level of anti-squat, which leads to maximum stability under hard acceleration, the motor does so much more than you’d think!
CYLINDER HEAD
There’s a lot packed into this DOHC cylinder head! Designed to simply deliver the best performance possible, large titanium exhaust valves and Diamond-like Carbon coated finger followers mean you can twist the throttle to your heart’s content! This bike revs freely up to its 13,400rpm limit and produces some seriously strong power along the way. Trust us!
CYLINDER AND PISTON
Performing an important role in delivering the lively performance that makes the MC 350F so much fun to ride, both the cylinder and forged bridged-box-type CP piston are professionally engineered from high strength aluminum. Engine responsiveness is as good as it gets thanks to the optimised valve guides and valve shaft diameters, which are precisely engineered using Computational Fluid Dynamics (CFD).
TRANSMISSION
As it’s made by PANKL Racing Systems, you just know that the 5-speed transmission is going to be smooth shifting and strong. On the internal shifting fork, a low-friction coating makes upshifting easier, even when the motor’s under heavy load. Also, a clever gear lever design helps prevent dirt build-up, which is especially useful when the ruts get deep and the dirt gets sticky!
CRANKSHAFT
Up and down, round and round… life’s tough being a 350F crankshaft! So it’s a good job that the spinning heart of the MC 350F motor is super durable with service intervals of 90 hours. Not only designed for maximum performance, the crankshaft is positioned to help centralize oscillating masses, which creates a super agile and lightweight feel to the bike while riding.
CRANKCASE
The protective housing keeping all the internal components safe and secure! Designed to centralize every internal part, the crankcases themselves are thin yet strong and lightweight thanks to being made using a high-pressure casting process.
EXHAUST SYSTEM
Put simply, the exhaust system is designed to deliver the very best performance at the lowest possible weight! Wrapping neatly around the motor, the two-piece header pipe feeds into a short and compact aluminum silencer that keeps the sound levels well within the FIM regulations.
DIAPHRAGM STEEL (DS) CLUTCH
The MC 350F is equipped with a Diaphragm Steel (DS) clutch, which is robust, super reliable, and contributes to the compact engine design. Inside the clutch basket, which is CNC machined from a single piece of steel for incredible longevity, is the clutch pack that features a single diaphragm steel pressure plate instead of traditional coil springs.
HYDRAULIC BRAKES
Fast is fun but slowing down is essential, which is why all GASGAS dirt bikes are fitted with high quality Braktec calipers and controls. Speaking of controls, the rear brake pedal is now considerably stronger to prevent it from getting bent out of shape in a crash or catching the ground when you’re railing through a deep rut. When you combine those Braktec calipers with GASGAS specific brake disks, 260mm up front and 220mm at the rear, the end result is amazing braking performance. This all means that all riders can stay on the gas longer and brake later into corners. And we all know what that leads to… faster lap times!
HYDRAULIC CLUTCH
No need for adjustment and offering a near maintenance-free operation, the best thing about the Braktec hydraulic clutch is that it provides consistent action. With free-play at the redesigned lever automatically adjusted, the biting point and function of the clutch remain constant no matter whether the motor is started from cold or used during the heat of a battle.
RADIATORS
Keeping the motor cool are a set of strong aluminum radiators, which channel the air through them in the most effective way possible. A large centre tube within the frame is used to reduce the number of hoses needed and ensures a consistent flow of coolant around the engine – just what you need when you’re in the heat of a battle!
WHEELS
Built to take a beating, our wheels are ready to play rough. No matter how heavy the landing or how rough the track is, the silver, CNC machined hubs, lightweight spokes, and high-strength EXCEL rims deliver maximum strength for complete peace of mind.
TIRES
One of the only components carried over from the outgoing generation of GASGAS motocross bikes are the Maxxis MaxxCross MX-ST tires. Need to know why? It’s simple. They perform so well on a wide variety of terrain and they’re super-durable too. After all, who likes changing tires?
ENGINE MANAGEMENT SYSTEM (EMS)
Small, light, and fast at processing data – just what you need from an engine management system! The Keihin component is the best in the business and engages each gear’s engine map, includes a rollover sensor that cuts the ignition during big crashes, and feeds information to the hour meter. Plus, if you install a Map Select Switch (available from your local GASGAS dealer as a Technical Accessory), it instantly synchronizes for plug and play simplicity and gives your bike Launch Control, Traction Control, the Quickshifter function and a two engine maps for customised power.
MAP SELECT SWITCH
Readily available as a Technical Accessory, the easy to install Map Select Switch really makes this GASGAS come alive! Offering plug and play simplicity, once fitted you’ll enjoy multiple benefits. There’s Launch Control for perfect starts, every time. Traction Control for hardpack and slippery conditions. And a Quickshifter function that allows full gas upshifting. Oh, and there’s also a choice of two engine maps. Map 1 (Mellow) delivers predictable power for all kinds of tracks and is suited to just about all riders. But with Map 2 (Aggressive) engaged, hold on tight, things will get wild!
CONNECTIVITY UNIT OFFROAD (CUO) & GPS SENSOR
For our 2025 4-stroke motocross models, GASGAS is stoked to put engine tuning into the rider’s hands. All you need to do is download our new GASGAS+ app, pair your device with the Connectivity Unit Offroad (CUO) and the GPS sensor that you can buy as a Technical Accessory, then with a few quick taps, you can access all the app’s features. Within the GASGAS+ app there are three main sections – ENGINE, SUSPENSION, and RIDER. The ENGINE feature allows you to customize and control the power delivery based on your style or the track conditions while the SUSPENSION feature offers recommended settings for different types of circuits. Multiple set-ups, for both the engine and suspension can also be saved for future reference. Finally, the RIDER feature is where your lap times are recorded along with the ability to analyze everything about how your bike is running.
THROTTLE BODY
The MC 350F uses a 44mm Keihin throttle body with an injector positioned to ensure the most efficient flow of fuel mixture into the combustion chamber. But what’s most important to all riders is the fact that the direct cable mounting system ensures an immediate throttle response.
ELECTRIC STARTER
The best invention since the wheel! With an electric starter fitted, this GASGAS starts super easily every single time you hit that start button. And to simplify things further and save space on the bars, the engine stop button is located in the same housing as the start button. Using a Li-Ion battery, which weighs approx. 1kg less than a conventional lead battery, you get the convenience of electric starting while the overall bike weight is kept to a minimum. It’s a win, win for everyone!
