The track-only KTM 450 SMR, built on the platform of the KTM 450 SX-F, has been updated for 2025, with improvements to the frame, fork, and styling.
The most significant update to the KTM 450 SMR is the frame, which now has visible cutouts and tube-wall-thickness changes around the front. The engine and rear shock mounts have also undergone some changes. These upgrades shave a bit of weight off the bike, which weighs 240 lb without fuel, while also improving chassis flex characteristics and cornering behavior, according to KTM. Also new are smaller footpegs to maximize lean angles.
The SMR’s suspension has also been updated for 2025. The previous AER 48mm fork has been replaced with a fully adjustable 48mm WP XACT closed-cartridge spring fork with a new mid-valve piston concept for optimized oil flow. The new hydro stop in the last part of the stroke is said to help keep a maximum of reserve for scenarios like big jumps and hard landings. The WP XACT shock returns with an updated linkage featuring new seals and smaller-diameter linkage bolts. Suspension travel is 11.1 inches in the front and 10.4 inches out back.
Related: 2021 KTM 450 SMR | First Ride Review
Air intake has improved with a one-piece inlet sleeve and snorkel design to prevent deformation thanks to a more robust and stiffer construction. The updated fuel tank mount is said to help protect the frame. Fuel capacity is 1.9 gallons.
The bike also receives new tank shrouds with bi-composite plastics on the upper and lower flanks, which contribute to the SMR’s new look. The full-orange bodywork with red and black graphics and a black seat, which KTM says is more durable than the previous seat, also contribute to the bike’s updated look.
Returning to the SMR are the Metzeler Racetec SM K1 Supermoto tires, which replaced the Bridgestone tires used since the 2023 update. The Metzelers are wrapped around 16.5-inch front and 17-inch rear wheels.
The KTM 450 SMR remains powered by a liquid-cooled 449.9cc Single with SOHC that makes a claimed 63 hp. Braking is provided by Brembo, with a 310mm front disc paired with a 4-piston radially mounted caliper. The bike also features a quickshifter that allows clutchless upshifts from 2nd to 5th gears, two ride modes, traction control, and launch control.
Pricing for the 2025 KTM 450 SMR has not yet been announced, but KTM says the bikes will be arriving in dealerships starting in November 2024.
Check out more new bikes in Rider’s 2025 Motorcycle Buyers Guide
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Source: RiderMagazine.com