22 June. Monday 2026
50 SX - 2025 Specifications and Reviews
The 2025 KTM 50 SX is a lightweight minibike designed for young and beginner riders entering the sport of motocross. Powered by a 49cc two-stroke engine with automatic transmission, it delivers sharp acceleration and easy handling on dirt tracks. Known for its aggressive styling and responsive WP suspension, the 50 SX excels as an entry-level cross machine that builds fundamental riding skills.
2025
General information | |
| Color Options | White/orange/black/purple |
| Category | Minibike, cross |
| Year | 2025 |
Engine and Transmission Specifications | |
| Starting | Kick |
| Clutch | Centrifugal |
| Final Drive | Chain (final drive) |
| Gearbox | Automatic |
| Ignition | Seletra 2p D36 EMS |
| Induction | Carburettor |
| Bore x Stroke | 39.5 x 40.0 mm (1.6 x 1.6 inches) |
| Engine Type | Single cylinder, two-stroke |
| Capacity | 49.0 ccm (2.99 cubic inches) |
| | |
Physical measures and capacities | |
| Fuel Capacity | 2.30 litres (0.61 US gallons) |
| Wheelbase | 1026 mm (40.4 inches) |
| Ground Clearance | 233 mm (9.2 inches) |
| Seat Height | 653 mm (25.7 inches) If adjustable, lowest setting. |
| Dry Weight | 42.5 kg (93.7 pounds) |
50 SX dimensions and frame | |
| Wheels | Spoked wheels with aluminium rims. Maxxis tires. |
| Rear Brakes | Single disc |
| Brake Disc Diameter | 160 mm (6.3 inches) |
| Front Brakes | Single disc |
| Rear Wheel Travel | 190 mm (7.5 inches) |
| Rear Suspension | XACT WP mono shock |
| Front Wheel Travel | 200 mm (7.9 inches) |
| Front Suspension | XACT 35 WP Upside-Down fork, Ø 35 mm |
| Frame | Chrome-molybdenum steel central-tube |
| | |
Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 KTM 50 SX discussion group or the general KTM discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Update specs | Report missing specs or required updates. |
| Comments | Intended for children 4-10 years old. |
| Rake (fork angle) | 24.0° |
| Driveline | 415, Non-sealed chain |
| Motorcycle name | KTM 50 SX |
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