How to measure a lawn mower tire


Lawn Tractor Tires - Sizing & Buying Guide

Tires-Easy Lawn and Garden tires, Tire Buying Guide, Tire Sizes

Replacing a damaged or worn-out lawn tractor tire is easy to do, and a whole lot easier than taking the tractor in to be serviced at the dealership or local repair shop. The first step is to find the right replacement tire. When you are shopping for new lawn tractor tires, there are four primary considerations:  tire size, ply-rating, the type of terrain and traction requirements, and of course, the price.

1. Lawn Tractor Tires Sizing

Like any other tire, lawn tractor tires have a series of numbers molded on to the side that spell out specific details about the tire. There are two different sizing systems:  two-number system, and three-number system.

  • Two-number Tire Sizing

Lawn tractor tires using the two-number system display numbers as 4. 80-8, for example. This means the tire’s width is approximately 4.8 inches and the rim is 8 inches in diameter.  Those are the only two numbers you need to find the right size replacement tire.

  • Three-number Tire Sizing

The three-number lawn tractor tires numbering system works a bit differently. 15×6.00-6 is a common size. The first number before the “x” indicates the tire’s diameter when inflated and not under load. The middle number between the “x” and the “-,” indicates the tire’s width. The final number indicates the width of the rim.  Note that the last number is width, not diameter of the rim. This is always the case with three-number sizing for lawn tractor tires and other garden equipment tires.

2. Lawn Tractor Tires Ply-rating

Lawn Tractors are very rarely over-loaded, but a tire with a higher carrying capacity is also more resistant to punctures because the casing of the tire is thicker and stronger. If your lawn tractor runs over rough terrain with lots of thorns, or you use the tractor for work other than just mowing, consider replacing with a “B/4-ply” rated tire instead of a “A/2-ply” rating.  The number of plies is always stamped on the side of the tire.  There are only two options, A/2-ply or B/4-ply in the common sizes for lawn tractors.

3. Traction Needs

There are three main classifications of tread pattern types for lawn tractors: mixed-use turf tires, knobby all-terrain tires, or ribbed tires.

  • Turf treads are most common and usually have circumferential rows of chevron shaped tread blocks. These are designed to provide some traction on slick grass, while not digging up and damaging the turf. If you are replacing one tire, you can usually find a tread pattern that is identical, or close to identical to the pattern on the remaining tires, or what came on the tractor when new. A good versatile turf tire is the WDT P512A tire.
  • Knobby, all-terrain treads typically have large tread blocks and deeper grooves to provide traction in loose surfaces like dirt, sand or mud. These tires sometimes have a herringbone tread pattern, like the tread on a farm tractor.  They feature a high void area (space between the blocks) to evacuate debris from the tire. If you use your tractor primarily for towing or other jobs on dirt paths without the mower deck, a knobby, all-terrain type tread like the WDT P328 tire may be the answer.
  • Ribbed treads have circumferential grooves and straight ribs that are either flat or slightly scalloped.   These patterns provide some lateral stability to keep the tire from sliding sideways, but are primarily designed to roll easily and last a long time. They don’t provide as much traction as a turf or knobby, all-terrain tire.

4. Price

You can find a large difference in the price of lawn tractor tires. This is due to factors like the brand name, the associated features and benefits, and even the country of manufacture.  A few minutes of online research to see typical prices for your specific size of tire will be helpful to manage your expectations and to set your budget. This will likely determine if you are going to buy a premium name brand, or if you are better suited to a cheap tractor tire made in china. Small lawn tractor tires can be found for as little as $20, and can run as high as $60 or $70.

No matter what size, ply rating or type of lawn tractor tire you need, you can find multiple options at low prices on Tires-easy.com. Tires-easy.com has one of the largest selections of lawn tractor tires on the web, a super knowledgeable customer service team, and an extensive distribution network for fast and accurate shipping every time.

Create an account for free on Tires-Easy.com and check out the discounted prices on a great selection of tires.

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A Beginner's Guide To Lawn Mower Tires