If you are a supermoto fan, KTM has some good news for you.  After a seven-year North American absence, the Austrian manufacturer is bringing back the KTM 450 SMR.

The revived machine has roots in the company’s 450 SX-F model motocross/supercross model.  KTM says that the SMR’s revival is because they want to address a “race-bike” absence in their arsenal.


The new 2021 KTM 450 SMR uses the SX-F’s 450cc engine, which puts out a claimed 63hp while weighing in at a little over 60 pounds.  To make that power, the engine uses a 95mm bore cylinder, which houses a 320g piston connected to a “high-end” connecting rod.   KTM says this setup maximizes torque and allows for a 100-hour service interval.

Transmitting the power through the machine is a PANKL Racing Systems 5-speed gearbox.  Inside is an “advanced sensor” that permits specific engine maps for each gear.  Adding to this combination is a SUTER slipper clutch that enhances rear-wheel stability.


According to KTM, the 450 SMR is a supermoto track weapon.

Those powertrain components reside inside a “special” robotically welded chromium molybdenum steel frame.  KTM says the frame light and robust and uses a subframe weighing in at only 900g.   In addition, the new frame is cast with a 16mm offset.  The bike’s die-cast swingarm may also be adjusted to optimize feel for any given track.


As for suspension components, the bike uses a 48mm WP XACT front fork featuring AER technology with a split damping function.  At the rear, a WP XACT shock is fully adjustable.  The setup provides 285mm of travel at the front as well as 266mm at the back.

450 SMR in action

The 2021 KTM 450 SMR in action.

Braking is provided courtesy of Brembo.  The fork uses a 4-piston caliper clamping down on a 310 mm floating disc.  On the other end of the machine, a Brembo caliper grasps a 220mm disc.  The wheelset consists of a combination of Alpina spoked tubeless 16.5/17 inch rims shod with Bridgestone slick tires.

Pricing is TBD.  If you want to know more about the KTM 450 SMR, visit KTM’s website.


All photo credit: KTM

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