JGR equipped the YZ450F with an adjustable subframe. We
chose the maximum lowering length, which was 10mm.
The Cycra Powerflow kit made the wide YZ450F feel like it
went on a diet. The slimmer profile was noticeable.
The JGR YZ450F was a breed of its own. It turned in without
issues. The powerband was smooth yet powerful.
is retarded when the CPU reads runaway revs. So if a
rider grabs too much throttle and lights up the rear tire,
the GET device will correct the mistake by retarding the
ignition to allow for improved traction to the ground. By
selecting the setting on the GPA dial, you can choose
when and how much retardation kicks in. We ran the
JGR/Cycra YZ450F on setting number 3. We give the
GPA dial two thumbs up.
On the test track, it seemed wrong to even call this
bike a Yamaha, because it didn’t feel like one. The JGR/
Cycra YZ450F machine was a breed of its own. To our
way of thinking, this bike solves most of the complaints
that riders have about YZ450Fs. It turned in without any
wiggle. The powerband was powerful but metered. The
suspension was firm but plush. The bike felt narrower,
because it was narrower. Best of all, JGR and Cycra are
willing to sell the expertise they have learned on the
Supercross and National circuit.
For more information, go to www.jgrmx.com or