| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | KTM |
| Model Name | 50 SX Junior |
| Year | 2009 |
| Category(class) | Pocket bike / Minibike (Cross) |
| Engine |
|---|
| Engine Capacity (Displacement) | 49 ccm (2.99 cubic inches) |
| Engine Type | Single cylinder, two-stroke |
| Bore x Stroke | Ø39.5 mm x 40.0 mm (Ø1.56 inches x 1.57 inches) |
| Bore/Stroke Ratio | 0.99 |
| Compression Ratio | 12.5:1 |
| Fuel System(Carburetion) | Carburettor. Dell´Orto PHVA 14 DS |
| Ignition | Seletra analogue |
| Starter System | Kick |
| Lubrication System | Mixture lubrication |
| Cooling System | Liquid |
| Exhaust System | Aluminium |
| Powertrain |
|---|
| Clutch | Centrifugal clutch (adjustable) |
| Chassis/Suspension/Brakes |
|---|
| Frame Type | Central double-cradle-type frame. Steel subframe. |
| Front Suspension | Marzocchi |
| Front Suspension Travel | 205 mm (8.07 inches) |
| Rear Suspension | WP monoshock |
| Rear Suspension Travel | 125 mm (4.92 inches) |
| Front Brakes | Single disc |
| Front Brakes Diameter | Ø160 mm (Ø6.3 inches) |
| Rear Brakes | Single disc |
| Rear Brakes Diameter | Ø140 mm (Ø5.51 inches) |
| Front Tire | 25-10 |
| Rear Tire | 275-10 |
| Dimensions |
|---|
| Seat Height | 607 mm (23.9 inches) |
| Fork Angle (Rake) | 24.0° degrees |
| Trail | 140 mm (5.51 inches) |
| Wheelbase | 910 mm (35.83 inches) |
| Ground Clearance | 220 mm (8.66 inches) |
| Dry Weight | 37.6 kg (83 lb) |
| Fuel Capacity | 2.30 litres (0.61 gallons) |
| Performance |
|---|
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | - |
| 0-60 mph | - |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
