| KTM's profilation of this bike |
| The 125 SX has long since established itself as the undisputed top dog above all in junior race series and as a springboard to the professional leagues. Powered by a high-performance 2-stroke engine with exhaust control system and 6-speed transmission, the 125 SX has been further improved for the 2015 model year, ensuring it will maintain its popularity with young champions in future. |
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General information |
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Model name
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KTM 125 SX |
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Year model
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2015 |
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Type
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Cross / motocross |
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Rating
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2.7 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. |
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Engine and transmission |
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Engine size
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124.8 ccm (7.62 cubic inches) |
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Type of engine
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Single cylinder, two-stroke |
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Engine details
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Reed intake. |
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Bore x stroke
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54.0 x 54.5 mm (2.1 x 2.1 inches) |
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Fuel system
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Carburettor |
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Ignition
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Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan |
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Cooling system
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Liquid |
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Gearbox
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6-speed |
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Transmission type
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Chain (final drive) |
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Clutch
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Wet multi-disc clutch, hydraulically operated |
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Driveline
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13:50. Primary drive: 23:73. |
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Chassis, suspension, brakes and wheels |
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Frame type
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Central tube frame made of chrome molybdenum steel tubing |
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Rake (fork angle)
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26.5° |
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Front suspension
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WP Suspension Up Side Down 4860 MXMA CC |
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Front wheel travel
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300 mm (11.8 inches) |
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Rear suspension
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WP Suspension 5018 BAVP DCC |
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Rear wheel travel
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317 mm (12.5 inches) |
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Front brakes
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Single disc. Brake calipers on floating bearings |
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Diameter
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260 mm (10.2 inches) |
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Rear brakes
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Single disc. Brake calipers on floating bearings |
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Diameter
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220 mm (8.7 inches) |
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Physical measures and capacities |
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Dry weight
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90.8 kg (200.2 pounds) |
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Seat height
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992 mm (39.1 inches) If adjustable, lowest setting. |
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Ground clearance
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395 mm (15.6 inches) |
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Wheelbase
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1480 mm (58.3 inches) |
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Fuel capacity
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7.50 litres (1.98 US gallons) |
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Other specifications |
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Color options
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Orange/black |
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Starter
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Kick |
| Update specs | Report missing specs or required updates. |
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Further information |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Parts finder |
Check out our overview of motorcycle webshops at Bikez.info. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Ask questions | Join the 15 KTM 125 SX discussion group or the general KTM discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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Technical issues with this bike
Bikez.com has a discussion group for every motorcycle. Here you may find answers to common questions about the model. If you do not find
what you are looking for, you can ask questions. Try out the 2015
KTM 125 SX discussion forum. You can sign up for e-mail notifications when other users answer you. If you have information about any
technical issue related to this motorcycle, please leave a comment for other riders.
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