KTM 50 SX - 2012 Specifications and Reviews
The 2012 KTM 50 SX is an entry-level minibike designed for young riders learning to ride off-road. Powered by a liquid-cooled two-stroke engine with automatic clutch transmission, it delivers manageable power with responsive handling. Known for its rugged construction and reliability, the 50 SX is best suited for beginner motocross and trail riding.
Engine and Transmission Specifications | |
| Exhaust system | Aluminium |
| Driveline | 11:40. Primary drive: 61:33. Rigid 1-stage reduction gear. |
| Clutch | 3-lining automatic clutch on the main shaft / centrifugal force |
| Transmission type,final drive | Chain |
| Gearbox | Automatic |
| Cooling system | Liquid |
| Lubrication system | Mixture oil lubrication 1:60 |
| Ignition | Seletra 2p D36 |
| Fuel system | Carburettor. Dell' Orto PHBG 19 BS |
| Bore x stroke | 39.5 x 40.0 mm (1.6 x 1.6 inches) |
| Engine details | Reed intake |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 49.00 ccm (2.99 cubic inches) |
| | |
| Category | Minibike, cross |
| Year | 2012 |
| Model | KTM 50 SX |
Brakes, suspension, Frame and wheels | |
| Wheels | 1.5 x 12in., 1.6 x 10in. Alu |
| Rear brakes diameter | 140 mm (5.5 inches) |
| Rear brakes | Single disc. Two-pot brake caliper |
| Front brakes diameter | 160 mm (6.3 inches) |
| Front brakes | Single disc. Four-pot brake caliper |
| Rear tyre dimensions | 2.75-10 |
| Front tyre dimensions | 60/100-12 |
| Rear suspension travel | 185 mm (7.3 inches) |
| Rear suspension | WP Suspension 3614 BAEM |
| Front suspension travel | 205 mm (8.1 inches) |
| Front suspension | WP Suspension USD 35 |
| Rake (fork angle) | 24.0° |
| Frame type | Central tube frame of chrome molybdenum steel tubing, powder-coated |
| | |
Physical measures and capacities | |
| Fuel capacity | 2.30 litres (0.61 gallons) |
| Wheelbase | 1,032 mm (40.6 inches) |
| Ground clearance | 252 mm (9.9 inches) |
| Seat height | 684 mm (26.9 inches) If adjustable, lowest setting. |
| Dry weight | 41.5 kg (91.5 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | Orange, black, white |
| Starter | Kick |
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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