Want a quick way to check if you have sufficient tread depth? Try a Penny.
- Insert penny into the tread groove with Lincolnís face showing but with his face upside down
- If any of Abe Lincolnís head is covered there is sufficient tread
- If you can see about Abe Lincolnís head ďIn God We TrustĒ the tires need to be replaced
Tire tread below 2/32 of an inch has reduced ability to grip the road in bad conditions. Additionally it is illegal in many states.