480/80R34 Tractor Tires

Buying 480/80R34 tractor tires

480/80R34 is a radial rear tire for utility and row-crop tractors. It is 480 mm (about 19 inches) wide, with a sidewall 80% of the width, on a 34-inch rim. It is commonly listed as the metric equivalent of 18.4R34, and it replaces the bias 18.4-34 on the same wheel if the rim width is within the tire maker’s approved range. You will also see 460/85R34 listed for the same job; the two are close but not identical in diameter.

The tread is usually R-1W, about 20% deeper than R-1, for grip in wet soil and longer wear.

Matching on front-wheel-assist tractors

Because 480/80R34 and 460/85R34 differ slightly in rolling circumference, don’t mix them on one axle, and check the front-to-rear ratio if you switch from one to the other. Common front partners include 380/85R24 and 420/85R24, depending on the tractor.

What to check

• Load index and speed symbol: match or exceed your current tires, especially with a loader or heavy rear implements.
• Rim width: check the marking on your wheel if you are changing from bias.
• Used tires: ask for the tread depth as a percent, the date code and photos of both sidewalls.

Send your tractor model, the quantity and delivery location for a quote.

What do 480/80R34 tires cost on our site?

We list 1 model in 480/80R34. One has a listed price: $1,320 per tire (Nokian TRI 2). Prices are per tire in US dollars and change with stock and season.

How tall is the 480/80R34 tire?

The nominal overall diameter is about 64.2 in (1,632 mm), which gives a rolling circumference near 202 in (5,126 mm). That figure is worked out from the size formula (rim plus two sidewalls). Real tires vary by make and load, so treat it as a guide and use the tire diameter calculator or the lead-lag calculator before you change size on a front-wheel-assist tractor.

Is 480/80R34 a radial or a bias tire?

It is a radial. The R in the size marks radial construction, and radials need careful pressure setting. See the radial vs bias guide.