REPLACE SWINGARM BEARINGS
11 steps to stop the shaking
By the staff of Dirt Wheels
❏ Regular maintenance of your ATV is important. Oil and
filter changes are key for routine procedures, but there
is more to keeping your quad in tip-top shape. At both
ends of your quad there are sets of bearings, seals and
spacers that need to be addressed on a regular basis too.
This month we are going to show you how to inspect and
replace the bearings on a sport quad swingarm. To help
with the project, we are using a swingarm bearing kit from
Pivot Works. Contact them at (515) 402-8000 or
1) With the quad on a stand, grab the rear tires and
rock them from side to side. This will expose any worn-out
bearings in the rear surrounding the axle or up front at the
2) Remove the brake caliper and spin the axle. If it
spins smoothly with no resistance, the carrier bearings
are good. If you feel bumps or grinding, the rear carrier
bearings should be replaced. With the caliper installed
there will be a little extra resistance from the brakes so it
needs to be removed.
3) The complete removal and inspection of your
swingarm should be done annually for trail riders and
monthly for racers.
4) The front needle bearings tend to go bad if the outer
seals fail or if you ride in a lot of water. The use of a
pressure washer can damage them too.