I put 10,000 + on my stock rear tire before I replaced it. But by the time I did the center of the rear tire was almost smooth. The front still has plenty of tread left so I didn't replace that one. Probably should have replaced it sooner but didn't want to give up the last few remaing nice riding days last fall. Had it replaced over the winter so no lost riding time.
2006 Vulcan 900 LT