
Agricultural & Farm Tires
12-16.5 Farm Tires
What 12-16.5 means, what else fits the same wheel, and how to get the right load range, from the Tiremaxx tire crew in St. Joseph, MN.
12-16.5 tires we carry
3 options in this size. Call (320) 363-7246 for price and availability, or request the one you want.
Our lineup refreshes from the warehouse system every 30 minutes. Call to confirm availability before you drive out.
- Wheel
- 16.5"
- Construction
- Bias-ply
- Section width
- 12"
- Overall dia.
- —
What 12-16.5 means
Every number on the sidewall is telling you something. Here's this one, decoded:
- 12Section widthAbout 12 inches across the widest part of the tire.
- –ConstructionBias-ply. The plies run diagonally, which gives a stiff, tough sidewall.
- 16.5Wheel diameterFits a 16.5-inch wheel. This is the number that has to match your rim exactly.
Equivalent sizes
The equivalent of 12-16.5 in the other construction is 305/70R16.5. Bias and radial versions stand close to the same height but are built differently, so tell us which one you run.
Size is only half the answer
Two 12-16.5 tires can be built for very different work. Ply rating or load index sets how much each tire carries, and the tread code sets the job: R-1 and R-1W for drive traction, F-2 for front steering, I-1 for implements and wagons. Tell us the tractor or implement and how it's used, and we'll match the tire to it.
Crosses categories
We also carry 12-16.5 as construction & OTR tires. Same numbers, different build. Tell us what it's going on and we'll steer you to the right one.
Other sizes on a 16.5" wheel
These share your rim diameter. Whether one of them will actually work depends on rim width, load range and fender clearance. Ask us before you switch.
12-16.5 questions, answered

Pull up to the counter
Need 12-16.5 for the farm?
Tell us the size and load range and we'll prepare a no-pressure quote.
