RI121 SA

Falken RI121 SA tires: built for heavy loads on big-rig rim diameters

Falken RI121 SA tires are made for the demands of large-wheel, heavy-load work, carried here in 22.5- and 24.5-inch fitments with load indexes stretching up to 149. The name and the ratings tell the story: these are stout, high-capacity tires meant to move serious weight, not lightweight passenger fitments. Below are the exact sizes, ratings and prices we stock for this model.

The sizes we carry

We stock the Falken RI121 SA across two rim diameters, 22.5 and 24.5 inches. The specific sizes we carry are:

That is what we carry, not a claim to the model's full size range.

Ratings on file

Every size we stock carries a speed rating of L. Load indexes run 137, 140, 143, 146 and 149, and you'll see them in dual service descriptions such as 140/137L, 146/143L and 149/146L — the paired single- and dual-position load values these tires are built to carry.

Price band and who it suits

Prices run from about $454 for the 255/70R22.5 up to roughly $588 for the tall 11R24.5. That places the RI121 SA in serious commercial-duty territory, priced for the load capacity it delivers rather than for a passenger-car budget. If you're shopping the rest of the range, the Azenis FK510 and Azenis RT615K+ are car-focused models with far smaller fitments, the Wildpeak A/T3WA leans toward trucks and off-road use, and the FK-090 Temporary Spare is a compact emergency option. The full Falken lineup and our wider tire selection cover the rest.

Ordering

Every order ships with free shipping on all orders. Financing is available at checkout, and if you'd like a hand confirming any spec, call us at 813-535-5801 or reach out through our contact page. Ask about mounted packages too.

Falken RI121 SA tires: built for heavy loads on big-rig rim diameters

Falken RI121 SA tires are made for the demands of large-wheel, heavy-load work, carried here in 22.5- and 24.5-inch fitments with load indexes stretching up to 149. The name and the ratings tell the story: these are stout, high-capacity tires meant to move serious weight, not lightweight passenger fitments. Below are the exact sizes, ratings and prices we stock for this model.

The sizes we carry

We stock the Falken RI121 SA across two rim diameters, 22.5 and 24.5 inches. The specific sizes we carry are:

That is what we carry, not a claim to the model's full size range.

Ratings on file

Every size we stock carries a speed rating of L. Load indexes run 137, 140, 143, 146 and 149, and you'll see them in dual service descriptions such as 140/137L, 146/143L and 149/146L — the paired single- and dual-position load values these tires are built to carry.

Price band and who it suits

Prices run from about $454 for the 255/70R22.5 up to roughly $588 for the tall 11R24.5. That places the RI121 SA in serious commercial-duty territory, priced for the load capacity it delivers rather than for a passenger-car budget. If you're shopping the rest of the range, the Azenis FK510 and Azenis RT615K+ are car-focused models with far smaller fitments, the Wildpeak A/T3WA leans toward trucks and off-road use, and the FK-090 Temporary Spare is a compact emergency option. The full Falken lineup and our wider tire selection cover the rest.

Ordering

Every order ships with free shipping on all orders. Financing is available at checkout, and if you'd like a hand confirming any spec, call us at 813-535-5801 or reach out through our contact page. Ask about mounted packages too.