22 June. Monday 2026
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 | |
| Wheelbase | 1,280 mm (50.4 inches) |
| Rear tyre | 20/11-9 |
| Front tyre | 21/7-10 |
| Rear wheel travel | 272 mm (10.7 inches) |
| Rear Suspension | Ohlins PDS Mono-shock, Fully Adjustable, Chromoly Swingarm |
| Front wheel travel | 275 mm (10.8 inches) |
| Front Suspension | Ohlins fully adjustable, Twin Chromoly A-arms |
| Fuel control | Single Overhead Cams (SOHC) |
| Valves per cylinder | 4 |
| Bore x Stroke | 89.0 x 72.0 mm (3.5 x 2.8 inches) |
| Compression | 11.0:1 |
| Capacity: | 447.92 ccm (27.33 cubic inches) |
| Model | KTM 450 XC |
| Color options | Orange, black, white |
| Starter | Kick |
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