However, I have never been surprised from worn tire. I've worn out six Z6's (and one Michelin Pilot Road) in the last 19 months by riding 40,000 miles in this period.

The trick is to pay close attention to the innermost tread wear indicator bar. Here is a close up of the wear bars on the Metzler Z6(B) tire. This tire is done, and no cords are showing yet.

The (B) designation indicates that this tire carries a heavier load rating than the standard non-B rated tire. The (B) tire is used on heavy sport touring bikes such as the BMW K-1200RS / GT and the Yamaha FJR1300.

However, I have never been surprised from worn tire. I've worn out six Z6's (and one Michelin Pilot Road) in the last 19 months by riding 40,000 miles in this period.

The trick is to pay close attention to the innermost tread wear indicator bar. Here is a close up of the wear bars on the Metzler Z6(B) tire. This tire is done, and no cords are showing yet.

The (B) designation indicates that this tire carries a heavier load rating than the standard non-B rated tire. The (B) tire is used on heavy sport touring bikes such as the BMW K-1200RS / GT and the Yamaha FJR1300.