2009 KTM 125SX

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2009 KTM 125SX
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2009 KTM 125SX

2009 KTM 125SX

– 2009 KTM 125SX

2009 KTM 125SX

The new 125 SX sets the standards in this field, and not just with its optimized chassis. It is ultra-light, super-agile and also convinces with a level of power which most four-strokes will find hard to beat.

2009 KTM 125SX – Specifications

Engine type Single cylinder, 2-stroke
Displacement 124.8 cc
Bore x stroke 54 x 54.5 mm (2.13 x 2.15″)
Starter Kickstarter
Transmission 6 gears
Carburetor Keihin PWK-S 38 AG
Control Exhaust control
Lubrication Mixture oil lubrication 1:40
Transmission oil Motorex, SAE 15W50
Primary drive 23:73
Final drive 13:50
Cooling Liquid cooled
Clutch Wet multi-disc clutch, operated hydraulically
Ignition Kokusan


Frame Central double-cradle-type 25CrMo4
Subframe Aluminium
Handlebar Renthal, Aluminium Ø 28/22 mm (1.10 / 0.87″)
Front suspension WP USD Ø 48 mm (1.89″)
Rear suspension WP PDS shock absorber
Suspension travel front/rear 300 / 335 mm (11.81 / 13.19″)
Brakes, front/rear Disc brakes 260 / 220 mm (10.24 / 8.66″)
Rims, front/rear 1.60 x 21″; 2.15 x 19″ Excel
Tires, front/rear 80/100-21″; 100/90-19″
Chain 5/8 x 1/4″
Main silencer Aluminium
Steering head angle 63°
Wheel base 1471 ± 10 mm (57.91 ± 0.39″)
Ground clearance (unloaded) 390 mm (15.35″)
Seat height 985 mm (38.78″)
Tank capacity approx. 8 liters (2.11 gal)
Weight (no fuel) approx. 90.8 kg (200.2 lbs)