[JohnC]

I'm pretty sure week 38 of 2009 is 3809, not 0938. Prior to 2000 codes were 3 digits, so 389 would be week 38 of 1999 (or 1989, or ...)

Five or six years tops, regardless of how much tread you may have. A tire failure on a motorcycle is not something you want to experience.

I put a Pirelli Sport Deamon on the front and a Kendra Cruiser on the back. Similar treads. So far, so good...