KTM 50 SX - 2008 Specifications and Reviews
The 2008 KTM 50 SX is a liquid-cooled minibike designed for young riders entering motocross. Powered by a nimble 49cc two-stroke engine with automatic transmission, it delivers responsive handling and manageable power ideal for developing skills on the track. Known for its reliability and competitive pedigree, the 50 SX remains a popular choice for junior racers.
Engine and Transmission Specifications | |
| Clutch | Centrifugal clutch (adjustable) |
| Transmission typefinal drive | Chain |
| Gearbox | Automatic |
| Cooling system | Liquid |
| Lubrication system | Mixture lubrication 1:60 |
| Starter | Kick |
| Ignition | Seletra analogue |
| Fuel system | Carburettor. Dell´Orto PHBG 19 BS |
| Bore x stroke | 39.5 x 40.0 mm (1.6 x 1.6 inches) |
| Compression | 12.5:1 |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 49.00 ccm (2.99 cubic inches) |
Physical measures and capacities | |
| Wheelbase | 1,030 mm (40.6 inches) |
| Ground clearance | 255 mm (10.0 inches) |
| Alternate seat height | 685 mm (27.0 inches) If adjustable, highest setting. |
| Seat height | 660 mm (26.0 inches) If adjustable, lowest setting. |
| Dry weight | 38.8 kg (85.5 pounds) |
| | |
KTM 50 SX dimensions and frame | |
| Rear brakes diameter | 140 mm (5.5 inches) |
| Rear brakes | Single disc. Bremo |
| Front brakes diameter | 160 mm (6.3 inches) |
| Front brakes | Single disc. Bremo |
| Rear tyre dimensions | 2.75-10 |
| Front tyre dimensions | 2.50-12 |
| Rear suspension travel | 125 mm (4.9 inches) |
| Rear suspension | WP monoshock |
| Front suspension travel | 120 mm (4.7 inches) |
| Front suspension | Marzocchi 32 mm (1.26 |
| Trail | 90 mm (3.5 inches) |
| Rake (fork angle) | 24.0° |
| Frame type | Double grinded central double-cradle-type frame |
Speed and acceleration | |
| Fuel capacity | 1.80 litres (0.48 gallons) |
| Category | Minibike, cross |
| Year | 2008 |
| Model | KTM 50 SX |
| | |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Track55%
City5%
Cornering60%
Daily Riding5%
Touring5%
Passenger0%
Rider Profile
| Best For | This is a first motorcycle built for young children just starting out in motocross, not for teen or adult riders of any skill level. |
| Purpose | It exists purely to teach a child the fundamentals of balance, throttle control, and off-road riding in a safe, low-powered package. |
| Rider Fit | Its very low 653 mm seat height and lightweight small-bore chassis are sized specifically for small children, with an adjustable centrifugal clutch to tailor power delivery to their skill. |
| Character | It behaves like a purpose-built miniature dirt bike, docile and forgiving with an automatic single-speed gearbox that removes clutch and shifting complexity so a child can focus on riding. |
| Not Ideal For | It is not suitable for adults, taller teens, road use, touring, or anyone seeking real speed or highway capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1

MotorcycleDB Review
The 2008 KTM 50 SX is a powerful and reliable motocross bike that is perfect for young riders looking to hone their skills on the track. With a lightweight frame and a 2-stroke engine, this bike offers excellent handling and acceleration, making it easy for young riders to maneuver through tight corners and navigate obstacles. The adjustable suspension allows for a smooth ride over rough terrain, while the brakes provide confident stopping power when needed. Overall, the 2008 KTM 50 SX is a top choice for young riders who want a high-performance motocross bike that can keep up with their skills. In conclusion, the 2008 KTM 50 SX is a fantastic option for young riders looking to break into the world of motocross. Its lightweight design, powerful engine, and adjustable suspension make it a top choice for young riders who want to take their skills to the next level. Whether navigating through tight corners or tackling rough terrain, this bike offers the performance and reliability that young riders need to improve their skills on the track.Add a Comment
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