The rim on the right is a standard 2.2 inches wide. A narrow rim (left) will give your
tire more “side bite.”
RIMS
A common practice in rock crawling is to narrow the rims. Doing this provides more
clearance between the links and the tires when steering, and since the tire is pulled in,
it will increase the tire’s “side bite” by bringing the tread down the side slightly. You can
see how to do this in the May 2007 issue of Radio Control Car Action. If cutting rims and
gluing them back together isn’t your thing, you can pick up some rims
that are already narrowed. Narrow 2.2 rims are available
from Axial, RC4WD and RPM. Axial also offers
Maxx-size rims in a narrow form.
A flat tread works better on the
rocks than a rounded tread. The
more tire contact you have on
the rocks, the better your truck
will crawl.
