2026 125 SX

2026 125 SX

Description

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 full throttle. The KTM 125 SX takes its leads directly from the KTM Factory Racing team for pure performance, pure results. Like the sound it makes, you won't forget it.

Specifications

  • ENGINE
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    • Engine Type
      Single-Cylinder
    • Engine Stroke
      2-Stroke
    • Bore (in)
      2.13
    • Stroke (in)
      2.15
    • Displacement (cc)
      124.8
  • TRANSMISSION
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    • Transmission
      Standard
    • Transmission Type
      Manual
    • Primary Drive (Rear Wheel)
      Chain
    • Number Of Speeds
      6
    • Overdrive
      No
  • TECHNICAL SPECIFICATIONS
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    • Wheelbase (in)
      58.8
    • Ground Clearance (in)
      14.1
    • Ground Clearance (mm)
      359
    • Dry Weight (lbs)
      203.7
    • Fuel Capacity (gal)
      1.9
    • Fuel Capacity (l)
      7.2
    • Engine Displacement to Weight (cc)
      0.61
  • SUSPENSION
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    • Front Suspension Type
      Inverted Fork
    • Front Suspension Size (in)
      1.9
    • Front Travel (in)
      12.2
    • Rear Suspension Type
      Twin Sided Swing Arm
    • Rear Travel (in)
      11.8
    • Number Rear Shock Absorbers
      1
    • Front Suspension Brand Name
      WP XACT
    • Rear Suspension Brand Name
      WP XACT
  • WHEELS & TIRES
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    • Front Wheel Width (in)
      1.6
    • Rear Wheel Width (in)
      2.15
    • Front Tire Width
      80
    • Front Wheel Diameter
      21
    • Rear Wheel Diameter
      19
    • Front Tire (Full Spec)
      DunlopĀ® GEOMAX MX34 80/100 R21 51M
    • Rear Tire (Full Spec)
      DunlopĀ® GEOMAX MX34 100/90 R19 57M
    • Rear Tire Width
      100
    • Front Tire Aspect Ratio
      100
    • Rear Tire Aspect Ratio
      90
    • Front Tire Speed Rating
      M
    • Rear Tire Speed Rating
      M
  • BRAKES
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    • Front Brake Type
      Hydraulic Disc
    • Front Brake Diameter (in)
      10.2
    • Rear Brake Type
      Hydraulic Disc
    • Rear Brake Diameter (in)
      8.7
  • Color options
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    • Orange / Black