2018 KTM 250 XC-W TPI First Look

Cycle News Staff | May 15, 2017

2018 KTM 250 XC-W TPI First Look – We heard about it last month, now we get to see it–KTM’s new fuel injected two-stroke off-roader. KTM today unveiled the 2018 250 XC-W TPI. (TPI stands for transfer port injection.) It’s the only fuel-injected two-stroke in KTM’s 2018 off-road lineup.

2018 KTM 250 XC-W TPI First Look
2018 KTM 250 XC-W TPI

Pricing has not yet been announced.

The following is from KTM:

2018 KTM 250 XC-W TPI First Look

KTM’s 250cc engine is known to be the most powerful and most competitive 2-stroke engine in the world. And now things get even better. The 2018 KTM 250 XC-W TPI boasts a newly developed and patented TPI (transfer port injection) fuel injection system – a truly unique feature when it comes to 2-stroke race bikes. The patented EFI system with two injectors into the transfer ports of the cylinder makes the engine much smoother to ride and reduces the fuel consumption drastically, a global game changer in terms of technology. Gone is the hassle of jetting, premixing gas and difficult starting. It was time to give a new push to 2-stroke technology and prove 2-strokes have a bright future. The KTM 250 XC-W TPI is leading the charge as the most advanced READY TO RACE 2-stroke.

2018 250 XC-W TPI Highlights

  • NEW 249cc 2-Stroke engine fitted with a patented TPI fuel injection system for perfect fueling at any altitude, no premixing and reduced fuel consumption while still living up to the standard of a KTM 2-stroke.
  • NEW Cylinder with two injectors placed in the rear transfer ports for excellent downstream atomization of fuel.
  • NEW EMS featuring a new ECU controlling ignition timing and fuel based on information from 5 sensors reading intake and ambient air pressure, throttle position, oil and water temperature for optimized engine response.
  • NEW 39mm throttle body by Dell’Orto features a butterfly valve controlled by a twin cable throttle.
  • NEW electronic oil pump feeds oil from the 700cc oil tank to intake to ensure a perfect fuel-oil mix under any condition while reducing smoking by 50% for up to 5 tanks of fuel.
  • UPDATED WP Xplor 48 upside-down split front fork with new outer tubes for more sensitivity, less stiction and reduced weight. Revised settings are stiffer as well.
  • UPDATED WP Xplor PDS rear suspension features stiffer settings while still offering the progressive feel and excellent bottoming resistance only PDS can provide.
  • NEW radiator guards provide better airflow in muddy conditions.
  • Engine cases feature a compact shaft arrangement for better mass centralization.
  • Cylinder with twin-valve controlled power valve for smooth power that can be adjusted within seconds for different track conditions.
  • Revolutionary lateral counter balancer reduces engine vibrations for less rider fatigue at the end of the moto.
  • 6-speed wide ratio transmission is perfectly suited for off-road duty
  • Hydraulically operated DDS clutch features a damping system for better traction and durability.
  • Lightweight Chromoly steel frame provides high torsional rigidity with less longitudinal stiffness resulting in excellent handling and energy absorption
2018 KTM 250 XC-W TPI First Look