24-1/2 center to center on the loops. To determine the width of rim, measure on the inside from bead to bead, not outside to outside. Measure the old rim BEFORE ordering. As other sizes could have been installed on your tractor at one time. Not designed for tubeless applications. If you do not see what you are looking for, send us a message and we will find it for you. All of our items are 100% guaranteed to be delivered as described. To see what great tractors and parts we currently have available. We are constantly updating and adding more items everyday. PLEASE MAKE SURE THIS IS THE CORRECT PART FOR YOU APPLICATION.