This is why I smile when I hear folks say " It's only done 2000 miles in the last year... the beltswill be OK for ages yet " The number I've seen at Nelly's off low mileage bikes that take this shape, and yet mine which had 10K on them in 2 years still roughly kept their original shape. Change them...you know it makes sense!
Originally posted by Bill O So whilst the belt has formed this shape, would it slip from the cogs or snap if it ran or would it loose this shape?
More likely to jump the cogs due to the tension being too slack on certain sections (with kevlar belts it is unusual for them to break these days) has the same effect as the belt breaking though - catastropic