Dean,

When the bottom of the chain hits the bottom of the bar channel or the
two channels on the bar wear down allowing the chain to ride not
touching the bar then its time to get a new one. Can't say by time wise
because it depends on friction, proper use of oil, etc. A worn bar will
cause the chain to go bad quicker.



dean wrote:
Not sure how long a bar should last. I've sharpened the chains many
times now and it seems great. Just wondering how long bars last and how
it will show itself.

Thanks!

Dean