2008 KTM 250exc
 
INNOVATION and development are two words that come to mind when you consider the new KTM EXC two-strokes. The Austrian giant hasn’t just sent out last years model with a fresh new look, instead the 2008 models have been tweaked and refined from top to bottom and the result is some very sleek, modern looking pieces of machinery. Who said two-strokes were old and outdated?The Bikes

KTM threw out the old chassis and started over with a completely new design. It’s the same steel perimeter frame you will find on the ’07 & ’08 SXFs and it is like comparing night and day when you compare it to the old one. It’s a very light, robust frame that has stood up well on the SX models and it suits the EXC range very well, giving a much racier feel to the orange enduros.

Turning prowess is improved due to the frame and the bikes now have a more flickable feel to them and are much easier to turn and steer than ever before. The swingarm is also all new and it’s another part which has been stolen directly from the SX range; it’s a die cast alloy unit which houses the linkage-free PDS shock. The suspension hasn’t missed out, also copping an upgrade to a specification very similar to what you will find on any SXF.

The new 48mm closed cartridge fork is a top notch unit and set up directly for the bush. Valving and spring rates are all aimed at those who love shooting through the bush rather than trying a triple on for size. At the back end the shock has been revised and has also seen its fair share of upgrades. It comes standard with high-speed compression damping control, and a 10mm longer shock shaft. This allows for higher piston speed and much better valving control. Once again the shock is well matched to the fork and works well in the ruts and bumps that our Aussie bush trails are littered with.

2008 KTM 250 exc
 
Both the 200 and 250 engines have been left relatively unchanged. Already a standout packages in their respective classes there was still a few minor adjustments that KTM felt were needed to keep them at the front of the pack. The crankcase has been modified greatly on the 200 EXC to improve the flow rates within the crank space. These changes help to make a more enduro-specific power output and a more responsive engine.

The ignition system has also been swapped for a dual curve plug-in/un-plug system. There is no switch taking up room on your handlebars instead there is a plug on the side of the bike along the frame near the radiator which you simply unplug or plug in according to your personal preference. One curve is mellower and one is more aggressive.

On the 250 EXC some of the changes are shared with the ignition and crankcase mods carried over to improve the larger engine. The crankshaft has also been changed on the 250 with a new connecting rod and bearings helping to improve reliability and reduce vibrations. If you’re over kick-starting, the new crankcase design on the 250 also allows for a bolt-on electric start system which is available directly through KTM. Very nice!

Testing In the Trees

Two brand new KTMs, a picture perfect day in a lush green paddock with some fast, fun trails. Yes, this was looking like it was going to be a very hard day at the office!

Polished hubs come standard on the 2008 KTM exc.
 
One of the first things we always seem to notice about any KTM is the front brake. Brembo has taken good care of the stopping power on the EXC range, and the big 260mm rotor pulled us up in a jiffy. Whizzing around the bush trails on the little 200 felt so easy, like we were riding a 125 on steroids. The 200 is nimble, light and flickable like any small bore stroker but the engine is somewhat beefed up and gets you moving a whole lot faster.

The power delivery is very user friendly and is easy to ride at either end of the powerband. On the tight stuff you can cruise around using the torque of the engine and just go from corner to corner without having to rev the freckle out of it. On the more open flowing trails don’t be scared to open the throttle up and give this thing a few more revs. We tried both of the ignition settings using the plug-in/un-plug system and definitely found a difference in both bikes’ power characteristics.

The suspension was just as we expected on the 200, it was plush and supple on the small stuff but it still handled a few harder hits very well. Between the new frame and suspension the nervous feeling that has plagued the oil burning Katos in the past is now gone and they feel much more predictable in the front end.

Climbing aboard the 250 we were expecting the usual punchy powerband most 250 two-strokes are armed with. How wrong we were, the 2008 250 EXC is a very enduro style engine with a smooth sedate power delivery. We continued on and gave the 250cc a bit of a blast on the grass MX track. The power was nice and friendly and never gave us any scares but you could tell this was more of a bush racer’s weapon.

EXC WP suspension is on the firm side.
 
On the MX style tracks the top end goes flat and doesn’t have much over-rev. The boys at KTM then explained their unique power valve spring system, allowing you to change the spring which in turn changes the way the power comes on.

With the heavier spring installed we soon discovered a whole lot more of a motocross feel to the engine. The power was more aggressive and there was more top end and over-rev. There is also a lighter spring than standard and this makes the power curve even more mellow which may be good for those greasy, snotty, slippery types of terrain that some of those enduro boys live for. The suspension on the 250 was similar to the 200 but it was just stiffened up a little bit. The bigger bike and generally bigger rider are the obvious reason for this and the package works well over all the terrain we could find over the course of the day.

Verdict

Yet again KTM has delivered excellent products with quality written all over them. Hydraulic clutch, Renthal fat bars, black Excel rims, wave disc brakes, WP suspension – the list continues as you keep looking over the bike. The 200 and 250 EXC are both very good bikes and we would love to have either of them sitting in our shed waiting for some pre-mix burning fun. If we had to pick one or the other we would probably go with the 200 simply because of the fun factor of revving the bejesus out of this little number and feeling like we were going as fast as Flash Gordon.

But if revving is not your thing then you cant go past the 250, it just does its thing and tractors you along without having to stretch the throttle cables and ride like a maniac.