2005–2010 · Enduro · Buyer's Guide
250 EXC Racing (MY2005)
The 250 cc Singletrack Scalpel
The Machine's Character
The 250 EXC Racing is KTM's small-bore four-stroke enduro, and nothing about it is watered down. It's a liquid-cooled 250 cc single making 39 hp, with a six-speed gearbox and chain drive. It has no electronic rider aids. No ABS, no traction control, no ride modes. The focus is the chassis: an upside-down WP fork with 11.8 in (300 mm) of travel and 13.2 in (335 mm) at the rear, adjustable at both ends, on a 21-inch front and 18-inch rear wheel. In its class, it sits firmly at the competition end. Pure enduro, nothing else.
Read the numbers and the intent is obvious. 15.0 in (380 mm) of ground clearance, a 58.3 in (1,481 mm) wheelbase and long-travel suspension point straight at roots, rocks and tight woods trails, not the highway. The 36.4 in (925 mm) seat height and 2.1 gal (8 L) tank say the same thing: this bike is for loops that start and end at the trailhead, and it's for someone who already knows their way around a dirt bike. On a trail, grip sets the pace, not horsepower, and 39 hp from 250 cc is built for exactly that. It's a race tool, and it needs race-tool maintenance. Respect that and it fits.
Hard Numbers
Spec sheets don't ride bikes, but they set the baseline.
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| Power | 39 hp (29 kW) |
|---|---|
| Displacement | 250 cc |
| Engine | Single-cylinder |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Upside-down (USD) |
| Front brake | 260 mm |
| Front tire | 90/90-21 |
| Rear tire | 120/90-18 |
| Wheelbase | 58.3 in (1481 mm) |
| Ground clearance | 15.0 in (380 mm) |
| Front travel | 11.8 in (300 mm) |
| Rear travel | 13.2 in (335 mm) |
| Seat height | 36.4 in (925 mm) |
| Fuel capacity | 2.1 gal (8 L) |
Equipment check
Chassis
- Front Suspension Adjustable Standard
- Rear Suspension Adjustable Standard
Known issues
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Brake fade under prolonged use
Front brake performance degrades during extended downhill or aggressive riding due to overheating or worn pads, reducing stopping power.
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Clutch slippage
Worn clutch plates can lead to slipping under load, especially after many hours of hard use. Replacement of plates and occasionally the basket resolves the issue.
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Fork seal leaks
WP fork seals are prone to weeping and leaking, particularly after mud and grit exposure. Regular cleaning and timely replacement of seals and dust wipers is necessary.
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Carburetor stalling or hard starting
Owners report hard starting and engine stalling, often traced to clogged fuel filters, dirty carburetor jets, or deteriorated fuel. Regular fuel system maintenance typically resolves the issue.
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Electrical / ignition starting problems
Weak or no spark under certain conditions, leading to starting difficulties; often traced to ignition coil, plug cap or wiring degradation.
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Cracked plastics and loose hardware
Body panels and fasteners prone to cracking or loosening from the rigors of off‑road use; regular inspection and thread‑locking compounds recommended.
The Numbers Compared
Compare the technical specifications of the KTM 250 EXC Racing with other bikes in its class.
Head-to-head: KTM 250 EXC Racing vs. its rivals
Power
Displacement
Seat height
Alternatives to the KTM 250 EXC Racing
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