VOL. 53 ISSUE 6 FEBRUARY 17, 2016 P67
cal trails, those typically found in
GNCC-type racing, light weight
and quick handling are critical,
so the JCR Team uses the R
models as their platform.
So where do they start when
it comes to transforming an MX
bike into a GNCC racer?
"The first thing we do to it to
go GNCC racing is: one, we
need the fuel capacity and a
dry-break re-fueling system for
that style of racing, so we add
the bigger tank," says Campbell.
"The next thing we do is add Pro
Circuit suspension, tailored to
the individual rider. Another thing
we do that we think is a big per-
formance improvement in han-
dling is put a 22mm offset triple
clamp on these bikes (stock is
20mm); it really aids in stability
in an off-road setting. It makes it
track well. Yes, steering is a little
need attention to detail to have
the best possible handling. So,
we torque the motor mounts and
the swingarm pivot, and some
of them we'll change the torque
specs depending on the type of
tuning we want to do for certain
applications."
Campbell said that the differ-
ent torque settings to the motor
mounts can drastically change
the way the Hondas feel on the
trail.
lazier but it's more predictable
for this style of racing.
"One of the real key things
in setting up a bike for us and
specific for a JCR model is
attention to detail when we're
assembling the bike. That means
making sure that the torque
specs are proper on anything
bolted to the chassis. Alloy
chassis' are sensitive and they
The CRF450R already pumps
out plenty of power, that is not
an issue, so when it comes to
modifying the motor, they spend
all of their time making the most
out of the power the Honda
already has.
"Chris likes a motor that's is
easy to ride. You have to ride a
450 four-stroke off-road for three
hours over not-so-easy terrain,
Johnny Campbell
with his babies: Chris
Bach's 450 and Trevor
Bollinger's 250.
