Technical Tip


Bearings - By Jason Hiles

3/27/2012


One of the most commonly over looked area's of any dirtbike are the wheel bearings and linkage bearings. A neglected wheel bearing or linkage bearing can cause serious  unwanted or needed damage. A few easy checks here and there can save bike down time and money.

WHEEL BEARINGS
With the bike on a center stand, simply grab your tire at a 12 o'clock and 6 o'clock position, then try to rock it back and forth.
If no movement / clunking, move hands to the 3 and 9 o'clock position.
Still no movement, your wheel bearings are ok.
Make sure to check both wheels, don't assume the other is ok.
If you did feel any play or clunking, replace your bearings right away.

Riding it one more time could be the differance between replacing bearings or bearings and hub. To prolong the life of your wheel bearings, add grease to the seal and spacer every time the tire is changed or wheel is removed.

LINKAGE BEARINGS
Checking the linkage bearings is also very easy, with the bike still up on the center stand, grab the rear wheel and pull up while pushing down on the seat / rear fender.
Any up and down play / clunking, replace right away.

Aftermarket linkage bearings come in a complete kit, so you don't have to try and narrow down which bearing is bad. I would just recommend getting the linkage kit that comes with the lower shock bearing. Greasing your bike's linkage and swing arm bearings once a year or every 6 months for lots of wet / water crossings and or lot's of pressure washing will save your bearings from wearing out prematurely.
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