KTM 250 SX - 2011 Specifications and Reviews
The 2011 KTM 250 SX is a lightweight two-stroke enduro bike engineered for competitive off-road racing and technical trail riding. Its potent 249cc single-cylinder engine with TVC power valve delivers impressive power-to-weight ratio, while the rigid aluminum frame and sharp 26.5-degree rake ensure precise handling on demanding terrain. Best known for its acceleration and agility, this machine suits ambitious amateur racers and experienced off-road riders seeking top performance in the intermediate class.
2011
General information | |
| Category | Enduro / offroad |
| Year | 2011 |
| Model | KTM 250 SX |
Engine and Transmission Specifications | |
| Exhaust system | Aluminium |
| Clutch | Wet multi-disc clutch, operated hydraulically |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Lubrication system | Mixture oil lubrication 1:60 |
| Fuel system | Carburettor. Keihin PWK 36S AG |
| Bore x stroke | 66.4 x 72.0 mm (2.6 x 2.8 inches) |
| Engine details | TVC power valve |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 249.00 ccm (15.19 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 | 110/90-19 |
| Front tyre dimensions | 80/100-21 |
| Rear suspension travel | 335 mm (13.2 inches) |
| Rear suspension | WP PDS shock absorber |
| Front suspension travel | 300 mm (11.8 inches) |
| Front suspension | WP USD 48 mm fork |
| Rake (fork angle) | 26.5° |
| Frame type | Central double-cradle-type 25CrMo4. Aluminium subframe. |
| | |
Physical measures and capacities | |
| Fuel capacity | 7.50 litres (1.98 gallons) |
| Wheelbase | 1,475 mm (58.1 inches) |
| Ground clearance | 385 mm (15.2 inches) |
| Seat height | 985 mm (38.8 inches) If adjustable, lowest setting. |
| Dry weight | 93.8 kg (206.8 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Modifications compared to previous model | New chassis (PDS), new airbox, air flow optimized intake boot between filter and carburetor. |
| Color options | Orange |
| Starter | Kick |
Performance Profile & Rider Fit
Best For
Track85%
City5%
Cornering90%
Daily Riding5%
Touring8%
Passenger0%
Rider Profile
| Best For | This is a full-blooded competition motocrosser best suited to experienced or intermediate off-road riders comfortable with a peaky 2-stroke powerband. |
| Purpose | Built purely for motocross track riding and racing, not for street use or general transportation. |
| Rider Fit | The tall 958 mm seat height, aggressive ergonomics, and physical demands of a light 2-stroke race bike require good rider fitness and reasonable inseam length. |
| Character | Sharp, explosive, and razor-agile, this bike rewards aggressive riding and precise throttle control with rapid acceleration bursts and flickable handling. |
| Not Ideal For | This is not suitable for commuting, touring, carrying passengers, or riders seeking a comfortable, low-maintenance everyday motorcycle. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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