The Ironman RB-12 tire comes in 225/70R15. It has a Load Index of 100 which means the tire is rated to hold up to 1764 lbs. The tire has a Speed Rating of T so it is rated to go up to 118 mph. The tire comes in a Black Side Wall.

The RB-12 is engineered with an optimized based tread compound that bolsters traction and durability. This compound forms into a symmetric, five-rib tread design that generates a large footprint that bolsters ride stability and overall performance. This tire is equipped with wide grooves, sipes, and slotted shoulders that rapidly disperse water away from the tire to prevent hydroplaning risks. The RB-12 utilizes a variable tread design that eliminates excess road noise for a comfortable, quiet ride.