2026 GPX FSE450R

If you’re looking for a big-bore torque monster, the FSE450R is just what the doctor ordered.

The largest-displacement bike in the GPX lineup, the mighty 450 is ready to throw some earth, blast through deep sand, and climb anything you can point it up!

The center of the FSE450R is its liquid-cooled SOHC motor, which fires up quickly with a press of the electric start button. Right away, you’ll notice the precise throttle response of the Delphi EFI fueling system that also ensures the air/fuel mixture stays perfect no matter the elevation or temperature. 

It doesn’t matter if you’re tackling tight terrain or blasting through the open desert, the engine temps stay in check thanks to a thermostat-controlled electric cooling fan that kicks on and off automatically, and a coolant overflow tank.

Plus, you can spend more time riding and less time wrenching with class-leading service intervals; the first valve clearance check isn’t due for 5000 miles!

The central backbone frame is made of chromo steel for the perfect combination of strength and flex to provide precise handling, and the alloy subframe reduces the weight compared to a traditional steel unit. 

48mm SZC fork offers adjustable compression, and rebound adjustment, all without needing any tools. The rear suspension duties are handled by full-adjustable piggyback SZC shock with a linkage. This all adds up to a chassis with confidence-inspiring stability that is ready for any obstacle in its path!

GPX has also made sure to include the high-end creature comforts on the chassis that the most demanding enduro riders will appreciate, including tool-less air filter access, a non-slip seat cover, a skid plate, and a front disc guard.

And GPX included as stock equipment all the little goodies that often go unmentioned but are hard to live without! 

• Handguards keep your fingers and protected from brush, roost, and inclement weather. 
• Front fork adjustments are easy to make without tools or getting off the bike, and the built-in speed-bleed buttons make it a snap to release built up air pressure in the forks. 
• CNC-machined billet aluminum components cover the entire bike, including the hubs, bar clamps, and triple clamp. 
• Speaking of the triple clamp, we’ve included tie-down rings on the bottom triple clamp to make it super easy to tie your bike down in your truck or trailer without scratching the 1-1/8” bars.
• A super bright LED headlight makes it easy to find your way home for those times that your adventures go on after dark. 
• Going racing? Every full-size FSE comes with a competition front number plate included at no extra charge.

ULTRA RELIABLE 450cc FOUR-STROKE ENGINE

In addition to its impressive power and smooth response, GPX’s 450 motor is built to last. It’s long maintenance intervals mean you can do more riding and less wrenching; the large oil capacity means fewer oil changes are needed, and the first valve clearance check isn’t necessary for 5000 miles!

ELECTRONIC FUEL INJECTION

Forget that box of jets, the Delphi EFI fueling system on the FSE450 ensures that your bike runs optimally regardless of temperature or elevation changes.

REAR LINKAGE SUSPENSION

The linkage rear suspension design has been optimized for precise handling and control through continuous whoops, high-speed G-outs, and faster terrain.