Originally Posted by
shouldberiding
How many miles did you get per chain and how did you determine they were worn out?
Which Shimano chain were you using before?
My recollection is about 3K miles for the first, and about 3K on the current one. I measure - this current one is 12 3/8.
I don't remember which Shimano chain I bought - it could have been 105, because it is a matte dark gray color.