P90
RIDE REVIEW I 2025 KAWASAKI KX450SR
The SR has a Brembo front
brake, a Nissin hydraulic clutch,
ODI lock-on grips, Ergo-Fit
footpegs, and a tool-less air
filter cover just like the standard
KX450.
The KX450 is the most expen
-
sive of the Japanese models at
$10,599, and the extra $3000 for
the KX450SR ($13,599 MSRP)
makes it the highest priced of
all "factory edition" models,
even the Husqvarna Rockstar
Edition by $800. Still, you'd pay
more than $3000 if you were
to purchase all these upgrades
yourself for the base KX450.
Right away, the uncorked
and freer-breathing Pro Circuit
different mapping, including
a new aggressive mode that
replaces the "smoother" mode
on the standard KX450. The
engine package also includes
a complete Pro Circuit Ti-6 Pro
exhaust system specially tuned
for the SR and constructed with
added reinforcements. Kawa
-
saki claims the SR produces two
more horsepower and two more
foot-pounds of torque than the
standard model.
A Hinson clutch cover en
-
hances the factory look; the
clutch internals are unchanged.
Renthal gold chain and
sprockets help distribute all the
SR's power to the ground.
So, what's so special about
the SR? You have several
important upgrades over the
standard model. To start, you
receive higher-end D.I.D Dirtstar
ST-X black rims, Xtrig Rocs-
Tech triple clamps with PHDS
(Progressive Handlebar Damp
-
ing System) bar mounts, and
a special upper and lower fork
and shock Kashima hard coat-
ing designed to reduce friction
and improve durability. Plus, the
Showa fork features additional
oil and different valving than
the base model. The 449.9cc
DOHC engine also gets some
attention. The intake ports are
polished, and the ECU/DFI has
The KX450SR "Special Racer" returns
to Kawasaki's lineup in 2025.
