IS IT STILL A REVVER?
Yes, it is. The KTM 250SX-F motor revs out higher than
any other 250 four-stroke on the market. That includes the
Husky, which tapers off sooner because of a slightly more
restrictive airbox. Although we haven’t tested any of the
2015 models on the dyno yet, it’s safe to say that the KTM
will be the horsepower king. None of the others have big
motor changes, and last year, the KTM peaked at almost
44 horsepower on the FMF dyno, a full 2 horsepower more
than any other bike. Even more significant, the power peak
happens right at the 13,500 redline. The only reason it
doesn’t make more power is because the ignition turns out
Oddly enough, you hit the KTM’s rev limiter pretty hard,
despite the fact that it’s way up there. In a racing situation,
you tend to keep going higher and higher as long as the
motor is willing—and the KTM is always willing. The Husky,
on the other hand, peaks out a little earlier, giving the rider
the motivation to shift sooner. The result is that you never
run headlong into the rev ceiling on the Husky, which is
slight compensation for a lower peak power rating.
While we’re on the Husky-versus-KTM topic, there’s
another unexpected difference. The KTM is 3 pounds lighter, at 229 pounds without fuel. Presumably, that’s all in the
subframe. No test riders claimed to notice the difference.
The 2015 KTM 250SX-F has significantly improved sus-
pension compared to the 2014 version. Give all the credit
to the new 4CS fork. It’s better everywhere—little hits, big
hits, sharp edges and rolling whoops. Having said that, the
front suspension is still the bike’s biggest weakness. As
we reported in the Husky FC250 test, the 4CS fork never
does anything evil, but it’s simply not as comfortable as
many of the new-generation forks from Japan. It seems
whenever WP makes progress, so does everyone else.
Also, like the Husky we just tested, the KTM’s rear sus-
pension is excellent. The SX-F just has a slightly different
seating position that can make it seem higher in the rear.
In the grand scheme of motocross things, the KTM
occupies more or less the same real estate it did in 2014.
It’s a pro-level machine that makes somewhat large
demands of riders who are less than pro level. It is still on
top of the list in power—only now it has company at the
top of that list. ❏
KTM set the price of the new 250SX-F at $8099, which is $100
more than in 2014.
The KTM’s biggest change for
2015 is the WP 4CS fork, which
is a significant improvement.