I am looking for some help with terms about tires. I thought super singles was a tire that took the place of dual tires at a wheel end. A wide base tire was used on off road construction equipment in the steer position. There are some tires (425/65r 22.5) that can be used on the steer axle that are 17.8 inches wide and require a 14 inch rim the same as a super single, but they call them wide base tires. ...