FMF’s new off-road pipe is called the Enduro Extreme, and
it’s a two-stroke work of art.
This bike was built for exactly the type of riding we like
best: tight and tough. We kind of assumed that SP was
going to come up with an EnduroCross bike, because
that’s what the shop is known for. But EnduroCross is
a show, not an activity. The build concentrated on making the bike an exceptional tool for unexceptional riders.
Guys like Cody Webb leap over all the rocks and roots that
the rest of us have to deal with, and that’s where the XC
The cornerstone of SP’s business is suspension; they’ve
developed a reputation for dealing with “problem suspension” like Marzocchi and, in the case of recent KTMs, the
WP 4CS fork. The fork has a small-diameter damper rod
and relies on oil displacement from the depression of that
rod to do all its damping functions. The problem is that
there’s not very much oil volume, so the fork is very finicky.
Alan installs many of his own parts in the 4CS to make
the fork more adaptable to different types of terrain. He
also puts a Kashima coating on some internal parts, which
helps reduce friction. SP even makes its own fork slider
that’s more durable and reduces drag. But, the real secret
is to set up the fork for a specific rider and application.
Same goes for the rear shock. SP installed a bladder in the
shock reservoir and gave it the coating and valving treatment.
Even though Stillwell is best known for suspension,
the shop knows its way around a two-stroke motor. The
cylinder and head were modified, and compression was
bumped up slightly, but not enough to require race gas.
Jetting a 300 is tricky, and SP has the market cornered
The debate rages on: Is it best to
use the XC or XC-W for tight terrain?
We set up an XC, but the case is by
no means closed.
on the famous Suzuki needle that Russell Bobbitt dis-
covered years ago. Ever since the news of a magic RM
needle spread on the Internet, there’s been a run
on Suzuki dealers, with KTM riders ordering any
and every needle on the parts microfiche. Those
GSXR parts-counter guys probably have no idea
what’s going on.
Jetting this particular bike was different from the
dozens of other 300s out there, because it was
one of the first bikes in the real world
to get the FMF Enduro Extreme pipe
and Titanium 2 silencer. The pipe
is something completely new
for FMF. It’s a high-end prod-
uct designed specifically for
extreme trail riding, as the name
suggests, and is delivered without
nickel plating. It has different
characteristics from the
other exhausts in FMF’s
line, and we discovered
that it requires slightly
fatter jetting on the
bottom. Instead of
the 40 pilot that SP
would normally use
in this type of appli-
cation, it needs a 42
The motor in our KTM got a mild increase in compression
and some port work and jetting. It was smooth and fast.