14 August. Friday 2026
KTM 125 EXC - 2012 Specifications and Reviews
The 2012 KTM 125 EXC is a lightweight two-stroke enduro bike designed for amateur and intermediate off-road riders seeking agile trail performance. Its compact 125cc engine delivers snappy power delivery ideal for technical terrain, while the liquid-cooled single-cylinder and electronic ignition ensure reliability. Best known for nimble handling and easy maneuverability in tight conditions, it remains a popular choice for entry-level to mid-level off-road enthusiasts.
General information | |
| Category | Enduro / offroad |
| Year | 2012 |
| Model | KTM 125 EXC |
Engine and Transmission Specifications | |
| Driveline | 14:50 (13:50) Primary gear 23:73. |
| Clutch | Wet mDouble disk clutch / hydraulically operated |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Mixture oil lubrication 1:60 |
| Ignition | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan |
| Fuel system | Carburettor. Keihin PWK 36 S AG |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Compression | 12.5:1 |
| Engine details | Reed intake and exhaust control |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 124.80 ccm (7.62 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 120/90-18 |
| Front tyre dimensions | 90/90-21 |
| Rear suspension travel | 335 mm (13.2 inches) |
| Rear suspension | WPSuspension PDS 5018 DCC |
| Front suspension travel | 300 mm (11.8 inches) |
| Front suspension | WPSuspension Up Side Down 4860 MXMA PA |
| Rake (fork angle) | 26.5° |
| Frame type | Central tube frame made of chrome molybdenum steel tubing |
| | |
Physical measures and capacities | |
| Fuel capacity | 9.50 litres (2.51 gallons) |
| Wheelbase | 1,471 mm (57.9 inches) |
| Ground clearance | 355 mm (14.0 inches) |
| Seat height | 960 mm (37.8 inches) If adjustable, lowest setting. |
| Dry weight | 95.0 kg (209.4 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | Orange/white/black |
| Starter | Kick |
Performance Profile & Rider Fit
Best For
Track20%
City15%
Cornering55%
Daily Riding10%
Touring15%
Passenger5%
Rider Profile
| Best For | This is a demanding, race-bred two-stroke enduro best suited to experienced off-road riders who understand peaky power delivery and no electronic aids. |
| Purpose | Built purely for competitive enduro and technical off-road riding, not for street use or general transportation. |
| Rider Fit | Its extremely light dry weight and tall seat height reward an agile, fit rider who can stand, shift body weight, and manhandle the bike over obstacles. |
| Character | A raw, high-strung two-stroke with sharp, explosive power and razor-quick handling that thrives on tight trails and technical terrain. |
| Not Ideal For | It is not suitable for daily commuting, highway touring, carrying a passenger, or riders seeking comfort and predictability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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