CRF450R/KX450F SWIVELING AIR VALVES
PRODUCT: Checking the air fork pressure on either the
Honda CRF450R or the Kawasaki KX450F is a ridiculously
convoluted job. By simply installing the Works Connection
air fork EZ Fill, the job becomes almost pedestrian,
simplified by the rotating fittings that tuck out of the
way or in position for an easy air check. The units
take under five minutes to install, do not leak
when pivoted, and work with both standard
and oversized handlebars.
POSITIVE: The bottom line is these should
have come on the machines in standard form.
NEGATIVE: When compared to the stock design,
there is no dark side other than the price tag, which taps at
the 100-dollar mark ($99.95).
BOTTOM LINE: If you ride green or red and your
machine has the Kayaba PSF air fork, then you need these
fillers.It doesn’t get a whole lot easier. ; CONTACT: www.worksconnection.com
DR.D 2014 KX450F NS- 4 EXHAUST
PRODUCT: It’s Dubach Racing Development’s stainless steel and aluminum NS- 4 exhaust system with
spark arrestor capabilities for the 2014 Kawasaki
POSITIVE: Fitment was spot-on. The new three-piece
design from DR.D slips on without any issue, and the
mounting holes line up with no additional adjustments
needed. DR.D does not use any springs with this
exhaust. This is a plus for us because there is less parts
to lose. Power was definitely improved over stock, with
more response off bottom, a stronger pull through the
midrange adding a substantial hit, and slight increases
on the top end.
NEGATIVE: The Kawasaki KX450F system from
DR.D is not as loud and annoying as the stock
unit, but it does have a louder than average note
to it. Once the spark arrestor gets hot, getting it
out is a chore.
BOTTOM LINE: The stainless steel/aluminum
complete exhaust system from DR.D for the
2014 KX450F is made of durable materials, mounts up with no issues, gives performance gains throughout the power
curve and requires no additional mapping.
It’s what we call a bolt-on-and-go item. With
a retail cost of just under $600, it’s a very
affordable hop-up item for the KX450. ;