2013 KTM 125 SX
The 2013 KTM 125 SX has been developed the springboard to a professional career for many a young rider. It comes with the new bodywork and significantly revamped suspension, and powered by the powerful 2-stroke engine with exhaust control system and 6-speed transmission. The lightest bike in its class has long been at the top of the pile, comparing with other on same class such as Yamaha YZ 125, Kawasaki KX 100, and Honda CRF 150 F. The WP monoshock has been refined, and together with the KTM linkage system, it excels with its completely revamped settings for improved damping, more traction and even higher reserves against bottoming out. The completely revamped bodywork indicate that the 2013 model year represents a new SX generation. The ergonomics and function of the plastics have been designed in such a way that the whole chassis and engine package forms a perfect harmony with the rider down to the very last detail. The fuel tank and spoiler have been restyled along with the airbox cover and the front fender, including the start number plate. Learn more about detail specification and features on 2013 KTM 125 SX.
2013 KTM 125 SX Specification
Engine Type – 1-cylinder 2-stroke engine, water-cooled, with reed intake and exhaust control
Displacement – 124.8 cm³
Bore x Stroke – 54 mm x 54.5 mm
Ignition System – Contact-less, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
Clutch – Wet multi-disc clutch/hydraulically operated
Transmission – 6 gear, claw shifted
Primary Gear – 23:73
Final Drive – 13:50
Chain – 5/8 x 1/4″
Chassis and Dimension
Frame – Central tube frame made of chrome molybdenum steel tubing
Forks – WP Suspension Up Side Down 4860 MXMA CC
Shock Absorber – WP Suspension 5018 BAVP DCC
Suspension Travel Front – 300 mm
Suspension Travel Rear – 330 mm
Brake System – Disc brakes, brake calipers on floating bearings
Disc Diameter Front – 260 mm
Disc Diameter Rear – 220 mm
Total Fuel Tank Capacity – 7.5 l, unleaded premium fuel, mixed with 2-stroke engine oil (1:40)
Weight Without Fuel – 90.8 kg
Steering Head Angle – 63.5°
Wheelbase – 1,480±10 mm
Ground Clearance – 395 mm
Seat Height – 992 mm
2013 KTM 125 SX Features
Engine and Transmission – New airbox covers are manufactured in a 2-component process with new in-mould graphics. The revised design of the airbox guarantees optimum protection of the filter from dirt and maximum air flow for top performance. The fixing for the left cover has been further improved, along with its installation. It makes quick replacement of the twin-air filter in a matter of seconds even easier. Furthermore, an additional tab on the cover allows it to be secured with a bolt. The engine braces to the cylinder head have also been optimized, along with their attachment to the frame.
Chassis and Suspension – The modern frame design of lightweight, high strength, chrome-molybdenum steel section tubes guarantees an ideal mix of longitudinal and torsional stiffness, resulting not only in easy handling and precise steering behavior, but also in excellent ride stability. The frames bear a new color for the 2013 model year and they are still the benchmark in terms of weight and stability. The 48 mm upside-down fork featuring closed-cartridge technology has been optimized with completely revamped settings for perfect harmony with the new frame and engine. A new lower triple clamp is 80 grams lighter and, just like the upper triple clamp, CNC-machined from high quality aluminium, whereby the steering characteristics and hence the responsiveness of the fork have been noticeably improved. The cast aluminium swingarm has been developed with state-of-the-art calculation and simulation software and constructed, in terms of design and wall thickness, for minimum weight with optimum stiffness. Redesigned the rear section of the swingarm to allow installation of a thicker rear wheel axle (25 mm instead of 20 m) for the benefit of better tracking stability on 2013 KTM 125 SX.
