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PHO_BIKE_90_RE_MY25-KTM-125-SX-90-right-Studio_#SALL_#AEPI_#V1
PHO_BIKE_90_RE_MY25-KTM-125-SX-90-right-Studio_#SALL_#AEPI_#V1
PHO_BIKE_90_LI_MY25-KTM-125-SX-90-left-Studio_#SALL_#AEPI_#V1
PHO_BIKE_90_REVO_MY25-KTM-125-SX-90-front-right-Studio_#SALL_#AEPI_#V1

2025 KTM 125 SX

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SUBJECT TO LAUNCH & AVAILABILITY
There are very few sounds that can’t be beaten. The crack of a soda can on a blistering hot day. The ping of the perfectly executed golf shot. And the scream of a 125 cc 2-stroke charging down a long straightaway. The 2025 KTM 125 SX takes its leads directly from the Factory Racing team and puts them to work like nothing else. Like the sound it makes, it cannot be beaten.

TECHNICAL DETAILS

ENGINE

  • TRANSMISSION: 6-speed
  • STARTER: Electric starter
  • STROKE: 54.5 mm
  • BORE: 54 mm
  • CLUTCH: Wet multi-disc DS clutch, Brembo hydraulics
  • DISPLACEMENT: 124.8 cm³
  • EMS: Vitesco Technologies EMS
  • DESIGN: 1-cylinder, 2-stroke engine
  • FUEL-MIXTURE GENERATION: Keihin EFI, throttle body 39 mm

CHASSIS

  • WEIGHT (WITHOUT FUEL): 92.4 kg
  • TANK CAPACITY (APPROX.): 7.2 l
  • WHEELBASE: 1493 mm
  • FRONT BRAKE DISC DIAMETER: 260 mm
  • REAR BRAKE DISC DIAMETER: 220 mm
  • FRONT BRAKE: Disc brake
  • REAR BRAKE: Disc brake
  • CHAIN: 520, Non-sealed
  • FRAME DESIGN: Central double-cradle-type 25CrMo4 steel
  • FRONT SUSPENSION: WP XACT-USD (AER), Ø 48 mm
  • GROUND CLEARANCE: 359 mm
  • HANDLEBAR: Neken, aluminium Ø 28/22 mm
  • REAR SUSPENSION: WP XACT Monoshock with linkage
  • SEAT HEIGHT: 958 mm
  • SILENCER: Aluminium
  • STEERING HEAD ANGLE: 63.9 °
  • REAR SUBFRAME DESIGN: Aluminum-reinforced polyamide
  • SUSPENSION TRAVEL (FRONT): 310 mm
  • SUSPENSION TRAVEL (REAR): 300 mm
  • WHEELS: Spoked wheels with aluminium rims