2025 KTM 450 SMR

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 b...