VOLUME ISSUE JUNE , P67
pounds without fuel. The engine
alone is six pounds lighter, ac-
cording to Honda.
The titanium fuel tank has a
higher capacity, from 1.7 gallons
to 1.9 gallons.
One of the highlights of
its all-new engine is a much
smaller physical footprint and a
lighter clutch assembly, which
is completely redesigned and
features a unique rubber-damp
-
er-activated back-torque-limiter
system, similar to a cush drive
in a rear-wheel hub. The result is
"slipper"-style clutch action. This
clutch system is already used
on the HRC Factory bikes in the
MXGP Championship.
The new exhaust system,
which features a 3.4-inch-longer
header and a 3.0-inch-longer
muffler, is designed to meet the
AMA's new 109 dB pro racing
sound limit.
The suspension is all new,
with a strong focus on the
49mm inverted Showa coil-
spring fork, which has moved
from a traditional Bending
Control Valve configuration to a
Dynamic Blow System main-pis
-
ton-valve structure. It also gets
a Kashima coating and stiffer
springs, increasing from 5.0N/
mm to 5.2N/mm.
The '27 Honda CRF450R
also features a new frame and
There will again
be a Works Edition
version, now called
"HRC" Works
Edition.
MOTOCROSS,
SPORT MODELS
