KTM 125 SX Motocross Specs (2009)
KTM 125 SX has single cylinder, 2-stroke engine with displacement 124.8 cc. In the following table you will find detail information about the specification of the motorcycle, engine type, bore and stroke, transmission, lubrication, frame, tires and brakes. Find more information about 125 SX herein below table.
ENGINE
| Engine type |
Single cylinder, 2-stroke |
| Displacement |
124.8 cc |
| Bore x stroke |
54 x 54.5 mm (2.13 x 2.15″) |
| Starter |
Starter |
| Transmission | 6 gears |
| Carburetor | Keihin PWK-S 38 AG |
| Lubrication | Mixture oil lubrication 1:40 |
| Transmission oil | Motorex, SAE 15W50 |
| Primary ratio | 23:73 |
| Final drive | 13:50 |
| Cooling | Liquid cooled |
| Clutch | Wet multi-disc clutch, operated hydraulically |
| Ignition | Kokusan |
CHASSIS
| Frame | Central double-cradle-type 25CrMo4 |
| Subframe | Aluminum |
| Handlebar | Renthal, Aluminum 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″ |
| Silencer | Aluminum |
| Steering head angle | 63° |
| Wheel base | 1471 ± 10 mm (57.91 ± 0.39″) |
| Ground clearance | 390 mm (15.35″) |
| Seat height | 985 mm (38.78″) |
| Tank capacity | approx. 8 liters (2.11 gal) |
| Weight (ready to race) | approx. 90.8 kg (200.2 lbs) |
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