Honest Abe will let you know if you need a tire… Here’s a quick test for those that aren’t tire savvy. Place a penny into several tread grooves across the tire. If part of Lincoln’s head is always covered by the tread, you have more than 2/32″ of tread depth remaining. Share this:TwitterFacebookLike this:Like Loading... Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.