2020 Motorcycle Previews 2020 KTM 450 SX-F, 350 SX-F and 250 SX-F First Look (6...

2020 KTM 450 SX-F, 350 SX-F and 250 SX-F First Look (6 Fast Facts)

2020 KTM Four-Stroke Motocrossers First Look

2020 is not a major update year for KTM’s four-stroke motocross line. However, the 2020 KTM 450 SX-F gets a few updates that the 2020 KTM 350 SX-F and 250 SX-F don’t receive. Let’s take a look at what’s new in the KTM SX-F line.

  1. The 2020 KTM four-stroke MXers get new settings for the WP XACT fork. The WP fork has a new fork piston for improved damping performance, and the fork continues to be an air-spring design.
  1. The WP XACT shock has a new compression adjuster. This improves tunability, according to KTM, and there are new shock settings.
  1. The 2020 KTM 450 SX-F gets a new piston. The shape has been changed “for improved performance and reliability.” There is no change to the piston on the 350 SX-F or 250 SX-F.
  1. The 2020 KTM 450 SX-F will have a 49-tooth rear sprocket. That’s up one tooth, so the gearing is about two percent lower than last year. The 350 SX-F and 250 SX-F will have the same rear sprocket as the previous year.
  1. There are bold new graphics on the 2020 KTM 450 SX-F, 350 SX-F, and 250 SX-F. You always want someone to know you’ve got the latest and greatest!
  1. No word yet on prices or availability.

2020 KTM 450 SX-F, 350 SX-F, and 250 SX-F Specs


Type: Single-cylinder four-stroke

Displacement: 450cc (350: 350cc; 250: 250cc)

Bore x stroke: 95 x 63.4 mm (350: 88 x 57.5mm; 250: 78.0 x 52.3mm)

Compression ratio: 12.75:1 (350: 14.2:1; 250: 14.5:1)

Valvetrain: DOHC, 4 valves

Fuel System: Keihin EFI w/ 44 mm throttle body

Ignition: Keihin EMS

Starting: Electric

Lubrication: Pressure lubrication w/ 2 oil pumps

Transmission: 5-speed

Clutch: Wet Multi-Disc DDS clutch w/Brembo hydraulics


Frame: Central double-cradle, 25CrMo4 chromoly steel w/ aluminum subframe

Subframe: Aluminum

Handlebar: Neken, Aluminum w/ 28-22mm diameter

Front suspension; travel: Fully adjustable WP XACT inverted 48mm fork; 12.2 inches

Rear Suspension: Linkage-assisted WP XACT shock; 11.8 inches

Wheels: Excel

Front wheel: 1.60 x 21”

Rear wheel: 2.15 x 19”

Tires: Dunlop MX3S

Front tire: 80/100 x 21

Rear tire: 120/80 x 19

Front brake: 260mm disc

Rear brake: 220mm disc


Wheelbase: 58.5 inches

Rake: 26.1 degrees

Triple clamp offset: 22mm

Seat height: 37.4 inches

Ground clearance: 14.6 inches

Fuel capacity: 1.85 gallons

Curb weight:  232 pounds (350: 231 pounds; 250: 230 pounds)

2020 KTM 450 SX-F, 350 SX-F and 250 SX-F Photo Gallery

Don Williams
Don Williamshttp://www.ultimatemotorcycling.com
With 50 years of riding experience, Don Williams is a fan of all kinds of motorcycles. He enjoys sport bikes, cruisers, dirt bikes, touring bikes, adventure bikes, dual sport bikes, and rideable customs. Ask Don what his favorite bike is and he will tell you, "Whatever bike I'm on."

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