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Electronics

• ENGINE MANAGEMENT SYSTEM (EMS): Small, light, and fast at processing data! The Engine Management System (EMS) is constantly measuring, calculating, and optimizing how the motor is running and adjusts accordingly, which means you can just focus on the trail ahead. After all, that's what enduro is all about, right? Plus, as crashes are part and parcel of riding offroad, there's a new rollover sensor that stops the motor if the bike goes upside down, which in enduro can, and often does, happen!
• OFFROAD CONTROL UNIT (OCU): Simplifying everything electrical, the new Offroad Control Unit replaces all the old school relays and fuses. You'll find the OCU under the seat to keep it safe and sound and in the unlikely event that an electrical component on the bike registers a problem, a corresponding LED changes from green to red. This way, you can quickly diagnose the issue, get it sorted, then get back to riding!
• ELECTRIC STARTER: To simplify starting and stopping, we've now put the buttons for each function into the same housing on the right-hand side of the bars. The starter motor itself is powered by a lightweight, Li-lon battery that fires this GASGAS into life as soon as you hit that start button. It's fast and reliable. Just what you want from an electric start, really.
• THROTTLE BODY: The ES 500 uses a 42mm Keihin throttle body with its injectors 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.
• LED LIGHT: By using LEDs to light the way, the headlight is almost three times brighter than a traditional bulb and is particularly effective when you're deep into dense woodland. And should either the mask or headlight get damaged, the two-piece design lets you replace only what's broken.

Handling

• FRAME: Do you want an enduro bike that offers playful handling, razor-sharp cornering, and confidence-inspiring straight-line stability? Who doesn't, right? Well, fortunately, for everyone who throws a leg over a GASGAS enduro bike, this is exactly what you'll expect thanks to some seriously clever work by the engineers who designed the frame. This bike really does handle like a dream, which reduces fatigue and, in turn, extends the fun! You're gonna love it. Grippy frame guards just above the footpegs provide a little extra grip for your boots for maximum control, even when the conditions get gnarly!
• SUBFRAME: The all-aluminum 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: Up front, WP XPLOR Open Cartridge forks take care of soaking up the bumps with ease. Speaking of things being easy, adjusting the forks' set-up to suit your speed, weight, and style couldn't be any simpler. On top of the left fork leg you can dial in the compression while over on the right fork leg you can fine tune the rebound, with both settings adjustable by hand. So, so, easy!
• WP SHOCK: Continuing to offer 300mm of travel, the performance of the WP XACT rear shock is taken up a notch for 2025 thanks to the new, lower friction seals in the linkage while a smaller diameter linkage bolt saves a little weight. Making sure every rider can create a personalized set-up, the shock can be adjusted by hand in various ways. High and low speed compression, as well as rebound can all be fine-tuned quickly and easily for maximum comfort and traction.
• 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

• MOTOR: It might be our biggest capacity and most powerful enduro bike ever, but make no mistake, the ES 500 motor makes this big-bore steed a blast to ride! All of the latest engineering techniques have been utilized to build this lightweight, SOHC motor to make sure it creates a super smooth spread of power. And trust us, it's smooooth!
• CYLINDER & PISTON: Engineered for performance, the cylinder and bridged-box-type CP piston combine to create impressive torque and peak power. And with both components professionally engineered from high strength aluminum, you can be assured that reliability is never in question.
• CYLINDER HEAD: There's a lot packed into this SOHC cylinder head! Light and compact, it's designed to deliver the best enduro performance possible. The intake ports are machined to pump up the torque numbers while a fine-punched cam chain and Diamond Like Carbon coated rocker arm are used for maximum reliability.
• COUNTER BALANCER SHAFT: The ES 500 motor uses a compact, multifunctional counter balancer shaft to counteract the rotational force of the crankshaft. Reducing any unwanted vibrations, it also drives the water pump and timing chain.
• CRANKCASE: Low in weight and super-strong, the crankcases have a thin-wall design that was made possible by using a high-pressure, die-cast production process. Within the crankcases, all moving parts are positioned to centralize mass, which plays a big role in making this bike a blast to ride!
• CRANKSHAFT: The crankshaft inside the ES 500 is key to the motor delivering great traction and enhanced rideability, as well as helping to make sure the bike is super agile between the trees. Benefitting from long service intervals, a plain big end bearing comprising two force-fitted bearing shells ensures maximum reliability and durability.
• DAMPED DIAPHRAGM STEEL (DDS) CLUTCH: Using a compact design to deliver better action and improved durability, the ES 500 uses a Dampened Diaphragm Steel (DDS) clutch, together with a hydraulic Braktec system. Ensuring riders have total control at all times, a single diaphragm steel pressure plate is used instead of traditional coil springs, which together with a damping system delivers better traction and durability.
• TRANSMISSION: A wide ratio, 6-speed, enduro-specific transmission lets you attack the terrain and every obstacle with confidence. It's also smooth shifting and super durable, with every gear change positive in all conditions, thanks in part to the gear lever that's designed to prevent mud from building up around it.
• EXHAUST SYSTEM: Delivering enduro specific power as well as being compliant, all our exhausts are designed and built to meet regulations and perform! Our 4-stroke header pipes wrap tightly around the motor to keep them out of harms way and deliver the very best performance at the lowest possible weight. They're also made in two pieces, which means they can easily be removed without needing to take out the rear shock. At the rear, there's short and compact silencer made from aluminum with a raw finish because, lets face it, it's going to get scratched sooner or later!

Parts

• BRAKES: Fast is fun but quite often in enduro, you'll need to slow down in a real hurry! This is precisely why all GASGAS enduro bikes are fitted with the latest high quality Braktec brake calipers and controls. With a 260mm disk up front and a 220mm disk at the rear, braking performance is seriously impressive, which inspires riders to push harder, ride faster, and brake later.
• HYDRAULIC CLUTCH: When riding enduro, you know full well that you'll need consistent clutch performance, especially when working your way through the toughest of technical sections. So, it's for this very reason that all GASGAS enduro bikes are fitted with a quality BRAKTEC hydraulic clutch system. In addition to the lever being extremely light to pull in, which reduces fatigue, the free play of the system is also self-adjusting. This means the biting point from the moment you fire your GASGAS into life remains the same all day. Every day.
• RADIATORS: A cool running motor is a well performing motor, which is why all GASGAS enduro bikes feature a cooling system designed for maximum efficiency. It also eliminates the need for additional hoses while the slim design of the radiators ensures a narrower bike with class-leading ergonomics. Expertly crafted using high strength aluminum, the radiators are mounted close to the center of gravity for the best possible handling.
• 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 and durability for complete peace of mind.
• TIRES: One of the only components carried over from the outgoing generation of GASGAS dual-sport bikes are the Continental TKC80 tires. Need to know why? Because they work so well on a wide variety of terrain and they're super-durable too. After all, who likes changing tires?

Style

• BODYWORK: All red, front to back! Just the way a GASGAS should be. Incredibly ergonomic with large contact surfaces to help you grip the bike with your legs, the smooth profile bodywork encourages riders to move around and ride with a perfect technique. There's also a super grippy seat cover to keep you locked in place, which works just as well when the rain starts falling and the going gets gnarly!
• 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. Allowing quick and easy filter changes, the airbox is designed with precisely positioned inlet ducts to direct the flow of air towards the Twin Air filter, which helps create maximum horsepower.
• HANDLEBARS: Get on the gas and hold on tight! Not too tight though as nobody likes arm pump... But to make sure the riding 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. There's also a new, stronger throttle housing that's more impact resistant for improved durability.
• FUEL TANK: Super slim and made from transparent polythene, the fuel tank lets you see how much fuel is inside while a threaded filler cap provides a secure and reliable seal. Beneath the fuel tank is a stronger support made from rubber that not only helps hold the tank firmly in place but protects the frame from wear as well. With an integrated fuel pump allowing the tank to be emptied further before refueling, extended rides are not a problem for this GASGAS!
• FOOTPEGS: Bigger is better when it comes to footpegs, which is why on the new models there's a bigger platform for better control. Plus, thanks to a new mounting design, they're placed further inward on the frame, which makes them less prone to catching the edge of deep ruts and a like.
• GRAPHICS: All-new graphics spice things up for 2025! 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.