The vinyl rider figure is a little small in
scale for the ARx-540 but works perfectly. The tank, fender and number
plate are made out of thick polycarbonate painted in Kawasaki green. Just for
fun, we had the rider done with baby-blue accents to match West Coast
Editor Jason Sams’ signature colors.
RIDER & BODYWORK
2MM ALUMINUM FRAME CHASSIS
Like an on-road RC motorcycle, the chassis is made of multiple plates
mounted together with standoffs. The ARx-540 uses high-quality aluminum
plates with gold-anodized aluminum hardware. This makes a very strong
and light platform to house the running gear. The motor and battery are
mounted on between the lower plates, which provide just enough room for
an A123 Systems 3-cell 2300mAh battery pack.
To let the front wheel center itself properly, a dual-spring steering
linkage is used. Attached to the end of the servo horn is a sliding
mount that runs on the steering rod between two springs. When
the wheel on the radio is turned left, the servo horn swings forward and pivots the front wheel to the right, which makes the bike
fall to the left to initiate a turn. So, effectively, the steering servo is
there to nudge the bike into leaning in the direction you want it to
go. It might sound like a bit of voodoo, but it works.