Day Motor Sports will be closed Thursday and Friday for the Thanksgiving Holiday. All orders placed after 3:00PM (Central) Wednesday thru Sunday evening will ship on Monday, December 1st.

A durometer precisely measures the hardness of a tire. A soft compound racing tire is subject to constant changing environments such as temperature, track temperature, humidity, friction, storage and age. Take the time to check the entire radius of the tire, checking different blocks across the tire. This allows you to take all the variables of the tire into consideration when choosing the correct tire for the race.