Cycle News

Cycle News 2021 Issue 50 December 14

Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles

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P78 FIRST LOOK I 2022 KTM 250 & 450 SX-F FACTORY EDITION The 2022 Factory Editions have been in the works for quite some time. The 450 was first tested by Cooper Webb and Marvin Musquin in 2019 and has been in development ever since. Highlights include a new motor that is tilted two degrees backwards to improve mass centraliza- tion. Tilting the engine also lowers the counter- shaft sprocket 3mm in the chassis and this helps combat rear suspension squatting under hard acceleration. The 450's SOHC cylinder head is redesigned to be more compact, as well. The 450 is now fitted with a Quick Shift func- tion that can be activated or deactivated via an updated map switch on the handlebar. When acti- vated, the ignition is interrupted for a fraction of a second to allow upshifting without the use of the clutch lever while the throttle is fully opened. A sensor on the shift drum notices the force on the shift lever, sends the signal to the ECU and the ignition timing is interrupted. To prevent unintend- ed shifts and false neutrals, the function is only active from second to fifth gear. The hydro-formed chromium molybdenum frame is all new with emphasis on improving the way energy transfers through the frame, thus in- creasing rider comfort. One of the ways KTM did this was by redesigning how the upper shock is mounted to the frame. Geometry is unchanged. Suspension features updated WP Xact 48mm forks and shock, which is now lighter and shorter in overall length while retaining the same amount of wheel travel. The 250 received many of the same changes as the 450, including tilting its DOHC motor, which has been tuned for more midrange power. The 250 received many updates specific to that bike. Only 400 units of each model will be offered and only in the U.S. CN 2022 KTM 250 SX-F Factory Edition

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