I didn't want to start a new thread, but was wondering how far down most ride their tires. I have right at 11,000 miles on my E 4's, and they need to be replaced. The rear still has a little groove left, but is well into the wear bar.

Do most ride unitl there is no groove, or replace when the wear bar is still visible? I wouldn't do more than a day ride close to home on these, but am I giving up too soon?