Low Price Guarantee Low Price Guarantee
Fast, Free Shipping Fast, Free Shipping
Customer Service 5-Star Service
No Hassle Returns No Hassle Returns
By browsing, you consent to our use of Cookies.

KTM Introduces All New Two-Stroke 250SX For 2017

Chaparral Motorsports
May 17, 2016
141629_KTM 250 SX left front MY2017 studio

While many two-stoke fans might have been extremely disappointed when they noticed there wasn't a 250 SX model to compliment the new engines and frames for KTM's 2016 125 and 150 SX Two-strokes and SX/XC Four-strokes, the brand made up for it in spades this year with the new 2017 250 SX.

Along with an all new an all-new chromoly steel frame and engine, the 2017 250 SX also gets treated to the new WP AER 48 air forks that we first saw on the 2016 250/450 four stroke Factory Edition bikes (actually the WP AER 48 setup will be used across the board on the SX, SX-F, XC, and XC-F models). The WP AER forks not only offers damping in the right leg with rebound and compression adjustments (bottom and top respectively) and an air spring in the left leg, the WP AER 48 is also about 3-pounds lighter than the previous 4CS fork setup. And to compliment the AER suspension, at the rear is a new softer spring with new settings.

142820_KTM Cylinder 250 SX MY2017 studioThe 250 SX engine is comprised of a new cylinder that has a twin-valve controlled power valve that can be quickly tuned for specific tracks. There is also a new counter balancer to help reduce vibration and rider fatigue. Externally a 38mm Mikuni TMX carb was added along with a new exhaust. Additionally, the drivetrain received an updated 5-speed transmission for smoother and easier shifting.

Other notable components include a new top triple clamp and new handlebar clamps with a single piece top clamp for better torsional support. In the braking department the rear brake pedal has been extended by 10mm and less aggressive pads were used for better brake feel and control.

2017 250 SX Specs:

  • Engine Type: Single Cylinder 2-Stroke
  • Displacement: 249cc
  • Bore/Stroke: 66.4/72.0mm
  • Starter: Kickstarter
  • Transmission: 5 Gears
  • Fuel System: Mikuni TX 38 Carburetor
  • Lubrication: Premix 60:1
  • Primary Ratio: 26:72
  • Final Drive: 13:48
  • Cooling: Liquid Cooling
  • Clutch: Wet Multi-Disc DDS-Clutch, Brembo Hydraulics
  • Ignition: Kokusan
  • Frame: Central Double-Cradle Type 25CrMo4 Steel
  • Subframe: Aluminum
  • Handlebar: Neken, Aluminum Ø 28/22mm
  • Front Suspension: WP Suspension AER 48 USD Ø 48mm
  • Rear Suspension: WP Monoshock 5018 BAVP DCC with Linkage
  • Suspension Travel Front/Rear: 300mm/11.81in; 300mm/11.81in
  • Front/Rear Brakes: Disc Brake 260mm/10.24in; 220mm/8.66in
  • Front/Rear Rims: 1.60 x 21", 2.15 x 19" Excel
  • Front/Rear Tires: 80/100-21"; 110/90-19" Dunlop MX3S
  • Chain: 5/8 x 1/4 in
  • Silencer: Aluminum
  • Steering Head Angle: 26.1º
  • Triple Clamp Offset: 22mm
  • Wheelbase: 1,485mm ± 10mm/58.5 ± 0.4in
  • Ground Clearance: 370mm/14.6in
  • Seat Height: 960mm/37.8in
  • Tank Capacity, Approx: 7L/1.85gal
  • Weight (without fuel), Approx: 95.4kg/210.3lbs

Chaparral Motorsports is an authorized KTM dealer

Back to Top