how long do they last before they should be replaced.

 

Some say 100,000 is the expected life span. some= dealer.

Common cause of failure is rocks getting in the belt.

 

Friend of mine with a FXDWG has over 80K on the original belt.

I've never had one fail, but they usually get replaced every 30K or so. That's probably 'overkill', but I just feel better putting on a new belt every so often.

Keep them adjusted and they will last a long time....

 

I've got over 50,000 miles on mine.

 

cool thanks guys. ya i noticed that if i had to replace mine now it would cost $200.00 right now.