14 August. Friday 2026
KTM 50 SX Pro Senior LC - 2004 Specifications and Reviews
The 2004 KTM 50 SX Pro Senior LC is a liquid-cooled two-stroke minibike engineered for competitive young riders progressing in motocross. Known for its responsive 49cc engine and lightweight 37.6 kg chassis, it delivers the agility and control essential for junior racing. The adjustable seat height accommodates growing riders while maintaining the precision handling that defines KTM's youth competition heritage.
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | Automatic |
| Cooling system | Liquid |
| Fuel system | Carburettor |
| Bore x stroke | 39.5 x 40.0 mm (1.6 x 1.6 inches) |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 49.00 ccm (2.99 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 910 mm (35.8 inches) |
| Ground clearance | 220 mm (8.7 inches) |
| Alternate seat height | 675 mm (26.6 inches) If adjustable, highest setting. |
| Seat height | 650 mm (25.6 inches) If adjustable, lowest setting. |
| Dry weight | 37.6 kg (82.9 pounds) |
KTM 50 SX Pro Senior LC dimensions and frame | |
| Rear brakes diameter | 216 mm (8.5 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes diameter | 216 mm (8.5 inches) |
| Front brakes | Single disc |
| Rear suspension | WP monoshock |
| Front suspension | Marzocchi 32 mm |
| Rake (fork angle) | 24.0° |
| Frame type | Central double-cradle-type frame |
| | |
Speed and acceleration | |
| Color options | Orange |
| Fuel capacity | 1.80 litres (0.48 gallons) |
| Category | Minibike, sport |
| Year | 2004 |
| Model | KTM 50 SX Pro Senior LC |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Track60%
City5%
Cornering55%
Daily Riding5%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a purpose-built first motocross bike for young children just starting out, not for any rider with prior full-size bike experience. |
| Purpose | Designed to teach small kids the fundamentals of motocross riding in a controlled, low-speed off-road environment. |
| Rider Fit | Its tiny 650mm seat height and 38.8kg weight mean it is only physically suitable for young children, typically around 4 to 8 years old. |
| Character | A miniature but genuine dirt bike with a centrifugal clutch and real suspension components, giving a confidence-inspiring introduction to off-road riding. |
| Not Ideal For | This bike is not suitable for teenagers, adults, road use, or anyone seeking speed, comfort, or long-distance capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Shop This Bike
Rider Reviews
Add a Comment
Related Motorcycle Specifications
More KTM Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501
Please Login or Register if you would like to leave a comment.