| KTM50 SX Junior 2000 | |
| Engine Type | Single Cylinder 2-Stroke |
| Displacement(cc) | 49.8 |
| Bore | 39mm |
| Stroke | 41.7mm |
| Fuel | RON 95/1:40 |
| Transmission oil | SAE 30 |
| Primary Ratio | 15:52,cast |
| Clutch | Centrifugal clutch |
| Spark Plug | Bosch W 4 AC |
| Cooling | Air cooled |
| Carburetor | Mikuni VM 16-519 |
| Frame | Single downtube,split-cradle |
| Fork | Telescopic fork Paioli 32mm |
| Handlebar | Aluminium |
| Suspension travel front/rear | 140/160mm |
| Rear Suspension | Paioli Monoshock |
| Front Brake | Single/cam drum brake 90mm |
| Rear Brake | Single/cam drum brake 90mm |
| Front Tire | Vee-Rubber 2.5*10" VRM-140 |
| Front Rim | 1.5*10" |
| Rear Tire | Vee-Rubber 2.5*10" VRM-140 |
| Rear Rim | 1.5*10" |
| Fuel Capacity | approx. 2.9liters |
| Final Drive | 11:45 t |
| Chain | 1/2 * 3/16" 94 rolls |
| Steering Head Angle | 63 |
| Wheelbase | 910 mm |
| Seatheight,unloaded | 585/610 mm(adjustable) |
| Ground Clearance | 230mm |
| Weight(dry) | approx. 39.5kg |