Maintenance & Technical > KX500 Original

Head-shake at High speed

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kiwikx500:
Cheers, I'll have a good check for leaks. The headshake not tank slapping stage but definitely not sure footed.

barryadam:
Not sure about Firestone, but any motorcycle street tire installer can do a dynamic balance.  It takes a lot of weight to counter the rim lock, but it is MUCH smoother especially at those speeds.
When I first got the bike, they were not balanced and after feeling that high speed vibration, I immediatley had both front and rear done.
Make sure to check to see if the rims are running true, as well.

Danger4u2:
I balance all my bike wheels, it makes a big difference.  It takes many weights to counter the rim lock.

kiwikx500:
Cheerz guys for "The heads up" Good info  :-)

Albertan:
I agree with the earlier comments about too much compression damping causing headshake.  Also, if you have less sag and the forks pulled up in the clamps (I run 95mm sag and forks 10mm up in the clamps at the motocross track to help it turn), but on fast trails and rocks, it will shake.  For open/desert stuff, more sag at the back (105mm) and the forks flush with the triple clamps makes it more stable (but a little harder to turn).

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