Firestone RIB Duplex Farm I-1 Tires

Product Info

RIB Duplex Farm I-1

Firestone’s Firestone RIB Duplex Farm I-1 tires are a specialty agricultural implement choice for exact-size replacement on field equipment. The Firestone RIB Duplex Farm I-1 tires are built for shoppers who need a ribbed, flotation-style fitment that matches the equipment spec instead of a broad passenger or light-truck tire search.

Robertson Tire offers this model in one cataloged size: 36x16-17.5, with Load Range D construction and part number 318-523. That single fitment makes rim compatibility and exact dimensions especially important, and the I-1 rib tread is a practical match for agricultural equipment where steady tracking and steering stability matter.

If you already know the size you need, start with Firestone tires or Shop Tires, then use Schedule Appointment to get help from Robertson Tire with fitment verification and next steps.

Tire Sizes