![](https://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-125-SX-First-Look-motocross-motorcycle-1-1132x509.jpg)
![](http://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-250-SX-First-Look-motocross-motorcycle-2-1024x683.jpg)
It might only be the end of April but KTM’s new 2020 250SX, 150SX and 125SX have been leaked, showing suspension upgrades and new-look graphics, while the black frame and black Excel rims of the all-new 2019 models remain. All still use carbs rather than switching to fuel injection, as on the 250 and 300 enduro bikes.
![](http://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-250-SX-First-Look-motocross-motorcycle-1-1024x683.jpg)
All the new bikes get updated WP XACT air forks with revised internals and new settings. The rear WP XACT shock has a new compression damping adjuster and new settings.
![](http://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-150-SX-First-Look-motocross-motorcycle-2-1024x683.jpg)
The only other change is thought to be on the 125 which gets a change to how the front sprocket is held on. A bolt and diaphragm spring have replaced last year’s circlip.
![](http://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-150-SX-First-Look-motocross-motorcycle-1-1024x683.jpg)
The bikes had a full overhaul last year, hence the few changes for 2020. It’s though the four-stroke KTMs will also get similar changes. There is no news on price or availability, but the two-strokes should go on sale in the next couple of months.
![](http://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-125-SX-First-Look-motocross-motorcycle-2-1024x682.jpg)
It’s believed the KTM enduro range will get a major overhaul for 2020.
![](http://www.motoheadmag.com/wp-content/uploads/2019/04/2020-KTM-125-SX-First-Look-motocross-motorcycle-1-1024x683.jpg)
2020 KTM 250 SX, 150 SX and 125 SX Specs
ENGINE
Type: Single-cylinder two-stroke
Displacement: 249cc (150: 144cc; 125: 125cc)
Bore x stroke: 66.4 x 72mm (150: 58 x 54.5mm; 125: 54 x 54.5mm)
Fueling: Mikuni 38mm TMX carburetor
Ignition: Kokusan
Starter: Kick
Lubrication: Premix @ 60:1 (150: 40:1)
Transmission: 5-speed (150 and 125: 6-speed)
Clutch: Wet multi-disc DS clutch w/ Brembo Hydraulics
CHASSIS
Frame: Central double-cradle 25CrMo4 chromoly steel w/ aluminum subframe
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: 110/90 x 19 (150 and 125: 100 /90 x 19)
Front brake: 260mm disc
Rear brake: 220mm disc
DIMENSIONS and CAPACITIES
Wheelbase: 58.5 inches
Rake: 26.1 degrees
Triple clamp offset: 22 mm
Seat height: 37.4 inches
Ground clearance: 14.8 inches
Fuel capacity: 2.0 gallons
Curb weight: 223 pounds (150 and 125: 205 pounds)