Mower Tire Time


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Checklist for Mower Tires


Time to Check Those Mower Tires!

Spring is quickly approaching- and seems to be coming a little bit early here in the Northeast…time to check all of your equipment and make sure you are ready to go this season!

Checking your tires is an important part of keeping costly downtime to a minimum. While there will always be the unexpected tire failures, some preseason checks can cut down the risk of experiencing a flat or loss of air pressure.

Lawn Mower Tire Tips

Here are some tips from past blog posts to help you properly evaluate the condition of your mower tires, and then some tips to help you should you need to replace them.
Check for cracks

Sunlight and extreme hot or cold temperatures can cause cracks in the sidewall of your tires. While the rubber compounds tires are manufactured with have anti aging compounds in them, exposure to the elements will cause the rubber to lose some of it’s elasticity, causing cracks in the surface. Driving on under inflated tires can also cause cracking. Also check your front caster wheels. If theses wheels are excessively worn, cracked, or don’t roll smoothly, you may need to replace them. Cracked or overly worn tires are also more likely to fail or have a blow out. As this usually happens while you are operating the equipment, that can really cut into your day’s productivity and operator safety.

Check for Proper Inflation of Tires

This is by far the most important aspect of proper lawn tire maintenance. Properly inflated tires reduces fuel consumption, field time and soil compaction. Tire pressure will vary based on equipment type and environment. Always consult your manufacturer’s recommendations for proper inflation. If your tires are over inflated you risk a blowout, a lopsided tire or reduced traction on some types of terrain. If you are under inflated, the tire can become creased and weakened. This will cause you to lose speed and efficiency. Bumpy ground may require slightly lower inflation and operating on smooth terrain an usually tolerate the higher air pressure. Loss of air pressure can be a sign of leaks and further attention may be needed. Our flat proofing products, such as flat free tire sealant may eliminate the issue if it is just a minor crack causing air loss. Further damage may require use of a lawn tractor tire tube or replacement of the tire. Flat Free lawn mower tires are available for almost all equipment and save time, headaches and money!

Look for Signs of Premature Wear

Over and under inflation can cause premature wear in the tread. Over inflation will cause the center of the tread while under inflation causes the shoulders to wear. Check for Damage to Sidewalls Check sidewalls for scuffs, chips and punctures. Also look for chips in the lugs of the tire. Look for Signs of Rusting at the Valve Stem Leaks at the valve stem could indicate the tire tube is failing. Generally this will also show signs of rust. This is usually a sign that it is time for a rim repair and possibly a new tube.

Check Tread Depth

Loss of traction is the best indicator that tread wear may be an issue. Low tread can be a safety issue on hills, especially when going downhill. Bald tires are more likely to slide, and cracked or overly worn tires are also more likely to blow out. This is a risk to both operator and your days productivity. – See more at:

If your Tires Need Replacement:

Tire Size

Here is a simple breakdown of how to read a mower tire’s size and understanding the information.
Carlisle Turf Master Mower Tires
Sample Tire: 16x650x8 Carlisle Turfmaster
1. Tire Size: 16x650x8 16″ tall x 6.5″ wide mounted on an 8″ diameter wheel.
2. Brand: Carlisle Tire
3. Model: TurfMaster – tread design.
4. Ply rating: 4 ply – the carrying capacity of the tire (usually 2 ply or 4 ply). The higher the ply rating, the weight capacity the tire can carry.
5. PSI – pounds per square inch. The tire lists the maximum air pressure a tire can be filled.
6. NHS – Non Highway Service – Max load capacity is usually listed a 10 mph.
7. Tubeless – most mower tires do not need a tube installed. However installing a tube fine. 8. Made In USA – all tires should be stamped with country of manufacturer.
9. UU 4 F09 – or similar code. This is the manufacturer’s code that usually includes manufacture date (month and year) and factory warehouse location. For more information you can go to the manufacture’s website. There you can find: exact mounted diameter and mounted width rim width max load (lbs) tire weight – See more at:

Do they need Tire Tubes?

While most lawn mower tires are manufactured as tubeless- meaning they do not require the use of a tube, there are many benefits for using a tire tube in a lawn mower or lawn tractor tire. Because mower tires operate at low air pressure (8-20 psi), and they tend to lose pressure due to numerous factors such as; long periods of inactivity, temperature changes, rusty rims, and debris getting caught between the tire rim and the tire.

Many customers will call us because their lawn mower tires still have decent tread, but they have lost air pressure due to other reasons. This is when tire tube can sometimes be used to extend the life of a tire.

Lawn tractor and mower tire side walls tend to crack (mainly caused by sunlight/UV rays). A small sidewall crack may be repaired with the use of a tube. If it is a major crack, then you should consider replacing your lawn mower tire.

Read more about mower tire tubes here.

Click here to shop for lawn mower tires online.

If you have any questions, we are always just a phone call away!
Specialty Tire Experts

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