2023 KTM 125 SX Bike
Bikes
Specifications
• New engine with electronic power valve offers improved mid-range power and rotating mass
• New 39 mm Keihin throttle body features advanced EFI technology for immediate throttle response and ease of use — no more jetting for conditions
• New electric start and lightweight Li-Ion battery provide immediate starts at a light weight
• New frame design with parallel mounts, new forged shock mount and reworked rigidity to better manage rider comfort
• New topology optimized subframe with hybrid polyamide and aluminum construction for improved durability
• New hollow, die-cast swingarm offers reduced unsprung weight and increased rigidity
• Updated WP XACT fork with new settings and new hydrostop to improve bottoming resistance
• New, completely redesigned WP XACT rear shock has a lighter and shorter body and all new internals
• New topology optimized handlebar mounts increase grip surface for reduced bar twist
• New map select switch changes engine character depending on track conditions and rider preference:
— Map 1 - linear, predictable power delivery
— Map 2 - crisp, explosive power output
• Engine type: single cylinder, 2-stroke
• Frame: central double-cradle-type 25CrMo4 steel, forged steering head connection, CNC-milled triple clamps
• Handlebar: Neken, aluminum, 28/22 mm diameter
• Hubs: CNC machined
• Lubrication: premix 40:1
• Primary ratio: 23:73
• Rims: Excel, 1.60 x 21” front, 2.15 x 19” rear
• Silencer: aluminum
• Sub frame: reinforced aluminum/Polyamide
• Triple clamp offset: 22 mm
• Includes fork air pump
First Look - 2023 KTM 125, 250, and 300 SX Two Stroke Models
RAW Two-Stroke | EFI 2023 KTM 125SX (video feature)
KTM website