Tire Equivalent Chart

Superior Tire Number

RTCo Flange Number

Break-over/ Depression

Nominal Tire Size

D-104 #2328A Break-over 1-1/8"
D-106 #2327A Depression 1-1/8"
D-105 #2439 Break-over 1-1/4"
D-107 #2441 Depression 1-1/4"
#4703 #4704 Break-over 1-1/2"
#4703 #4706A Depression 1-1/2"