If you enjoy the feeling of your eyeballs retreating into your skull, meet the 2025 KTM 450 SMR. Built in Austria and fueled by pure adrenaline, this competition supermoto is officially “non-street legal”—which is code for “too much fun for your local cul-de-sac”. It even carries zero warranty, because KTM knows exactly what you’re going to do to it the second you hit the track.
Engine and Transmission: The “Hold on Tight” Package
At the heart of this beast is a liquid-cooled 450 cc single-cylinder engine featuring an overhead camshaft and a four-valve cylinder head. It churns out over 63 horsepower and more than 30 lb-ft of torque.
To make sure you don’t stall while showing off, it comes with:
- A five-speed transmission paired with an electronic quick shifter for full-throttle upshifts.
- A hydraulic clutch with a slipper function to keep things smooth when you’re downshifting like a maniac.
- A 1.9-gallon fuel tank, which is just enough to get you into trouble.
- A featherweight build of 240 pounds with a full tank, making it lighter than most professional wrestlers.
Frame and Suspension: Absorbing Your Poor Decisions
The 450 SMR features a steel frame and an aluminum swingarm, rolling on 16.5-inch front and 17-inch rear spoked wheels. They are wrapped in tubeless Metzeler Racetec SM tires that stick to the pavement like gum to a shoe.
The suspension is designed to handle whatever jumps or curbs you throw at it:
- Front: 48 mm WP closed cartridge spring forks with 11.1 inches of travel.
- Rear: A linkage-equipped WP shock with 10.5 inches of travel.
- Adjustability: Both ends offer full damping adjustment, including high and low-speed compression circuits for the perfectionists.
Braking and Electronics: Stopping Power and Nerd Tech
Because you eventually have to stop, KTM threw on dual hydraulic disc brakes. The front features an oversized disc and a Brembo radial mount M50 caliper that provides enough bite to stop time itself.
To keep you from looping the bike into orbit, the electronic suite includes:
- Traction Control (on/off, depending on how brave you feel).
- Launch Control for winning the “stoplight grand prix” at the track.
- Adjustable Maps for engine power and throttle response.
The Bottom Line
Retailing for $12,749, the 2025 KTM 450 SMR is essentially a high-velocity Austrian sculpture. It’s built for one thing: going fast sideways on a track while you grin like a lunatic.
