The 2025 KTM 300 EXC HARDENDURO is ready to roll out of the racing van and onto the prologue starting line. Based on the already legendary KTM 300 EXC, the HARDENDURO sets itself apart with an exclusive HARDENDURO parts package. Hardcore protection parts, pull-straps, CNC-machined components – not to mention full-adjustable closed cartridge forks – and a totally unique graphics kit, makes this the ultimate HARDENDURO package for tackling the World's toughest offroad championship. 2025 KTM 300 EXC HARDENDURO highlights are:
 

  • ORANGE GLOSSY FRAME
  • KTM HARDENDURO BAR PAD
  • FACTORY RACING FRAME PROTECTION SET
  • FACTORY RACING SEAT
  • MAP-SELECT SWITCH
  • FACTORY WHEEL SET
  • WRAP-AROUND HANDGUARD KIT
  • RADIATOR FAN
  • BLACK ANODIZED CNC MACHINED TRIPLE CLAMPS
  • SKID PLATE
  • SEMI-FLOATING FRONT BRAKE DISC
  • FRONT BRAKE DISC GUARD
  • SOLID REAR BRAKE DISC
  • REAR BRAKE SAFETY WIRE
  • ORANGE REAR BRAKE DISC GUARD
  • ORANGE SUPERSPROX STEALTH REAR SPROCKET
  • CLUTCH SLAVE CYLINDER PROTECTION
  • SUPPORTING STRAPS
  • METZELER 6 DAYS EXTREME TIRES

    This motorcycle is designed, developed and produced in Austria.

Engine

  • Primary drive26:72
  • Transmission6-speed
  • Secondary gear ratio14:45
  • StarterElectric starter
  • Stroke72 mm
  • Bore72 mm
  • ClutchWet, DDS multi-disc clutch, Brembo hydraulics
  • Displacement293.15 cm³
  • EMSVitesco Technologies EMS
  • Design1-cylinder, 2-stroke engine
  • Fuel-mixture generationKeihin EFI, throttle body 39 mm

Chassis

  • Weight (without fuel)106.1 kg
  • Tank capacity (approx.)9 l
  • Wheelbase1.489 mm
  • Front brake disc diameter260 mm
  • Rear brake disc diameter220 mm
  • Front brakeDisc brake
  • Rear brakeDisc brake
  • Chain520 X-Ring
  • Frame designCentral double-cradle-type 25CrMo4 steel
  • Front suspensionWP XACT-USD, Ø 48 mm
  • Ground clearance347 mm
  • HandlebarNeken, aluminium Ø 28/22 mm
  • Rear suspensionWP XPLOR shock absorber with PDS
  • Seat height963 mm
  • SilencerAluminium
  • Steering head angle63.9 °
  • Rear subframe designAluminum-reinforced polyamide
  • Suspension travel (front)300 mm
  • Suspension travel (rear)310 mm
  • Tyre dimensions (front/rear)90/90; 140/80
  • Wheels21 x 1.60"; 18 x 2.15"