16 May. Saturday 2026
125 SX - 2026 Specifications and Reviews
The 2026 KTM 125 SX is a lightweight 2-stroke motocross bike engineered for young and amateur riders seeking competitive performance. Featuring a sharp 124.8cc engine with EFI and WP XACT suspension, it delivers responsive handling and reliability for both training and entry-level racing. This machine is renowned for outstanding agility and value in the junior motocross segment.
2026
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc DS clutch, Brembo hydraulics |
| Induction | Keihin EFI, throttle body 39 mm |
| Gearbox | 6-speed |
| Capacity | 124.8 cm³ |
| Engine Type | 1-cylinder, 2-stroke engine |
Physical measures and capacities | |
| Fuel Capacity | 7.2 l |
| Ground Clearance | 359 mm |
| Seat Height | 958 mm |
125 SX dimensions and frame | |
| Rear Travel | 300 mm |
| Front Travel | 310 mm |
| Rear Suspension | WP XACT Monoshock with linkage |
| Front Suspension | WP XACT-USD (AER), Ø 48 mm |
| Rear Brakes | Disc brake |
| Front Brakes | Disc brake |
| Frame | Central double-cradle-type 25CrMo4 steel |
Rider Reviews
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