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Fed up with flat tires grinding your workday to a halt? If you are tired of patching punctures or waiting for a service truck to fix a slow leak and you need a set of wheels that can handle debris, glass, nails, and job site abuse without ever losing air, it is time to seriously consider whether you should buy foam filled skid steer tires. We have spent the last several weeks pushing a set of the Set of 4-Heavy Duty FOAM FILLED (NO FLAT) 12-16.5 Forerunner SKS-9 Skid Steer Tires on Gray Wheels/Rims (8 lug) through mud, snow, gravel, and hard-packed dirt to see if they live up to the no-flat promise. This is our honest, hands-on experience to help you decide if this is the upgrade your machine needs. Many skid steer owners debate the question of should I buy foam filled skid steer tires every time they pull a nail out of a sidewall. We are here to give you a definitive answer based on real-world punishment and careful testing.
If you have been searching for best skid steer tires for snow traction that also eliminate the risk of a flats, this review covers the SKS-9 design, load capacity, and how these tires perform in the conditions that matter most. We also break down the foam filled vs air tires pros cons so you can see exactly where this technology shines. Plus, we tackle the question of whether these are genuinely heavy duty skid steer tires worth buying by evaluating every aspect of the Forerunner SKS-9 tires quality. The short version: if you prioritize uptime and hate flats, these are a game changer. You can read our full breakdown below, or buy foam filled skid steer tires,should I buy foam filled skid steer tires,best skid steer tires for snow traction,foam filled vs air tires pros cons,heavy duty skid steer tires worth buying,Forerunner SKS-9 tires quality for a direct comparison of top-rated options.
This product is exactly as described: a complete set of four foam filled tires pre-mounted on matching gray steel rims. The buy foam filled skid steer tires decision simplifies to this concept: a dense polyurethane foam permanently replaces the air inside the tire. The result is a complete puncture-proof system that never goes flat. The tire itself is the Forerunner SKS-9, a direct replacement for the well-regarded Camso SKS753. It is a bias-ply, 14-ply rated tire designed for heavy-duty off-road use. The SKS-9 uses a self-cleaning tread pattern engineered to eject mud and stones while maintaining grip, especially in snow. For operators who constantly ask should I buy foam filled skid steer tires to eliminate downtime, this set offers a ready-to-mount solution with a 6780-pound load capacity per tire. The gray 8-lug wheels feature an 8 on 8 bolt pattern that fits a massive range of machines from Case, New Holland, Bobcat, John Deere, Caterpillar, and many others. For background, Forerunner is a brand known for producing durable replacement tires for construction and agricultural equipment. Their focus is on delivering reliable performance at a value compared to premium OEM brands. The SKS-9 pattern is their answer to the classic snow/mud tire category.

| Specification | Value |
|---|---|
| Size | 12-16.5 |
| Rim Size | 16.5 Inches |
| Section Width | 12 Inches |
| Tire Diameter | 33 Inches |
| Tread Depth | 37/32nds |
| Load Capacity (Tire) | 6780 Pounds |
| Ply Rating | 14-Ply |
| Construction | Bias |
| Speed Rating | A2 |
| Max Pressure (if air) | 90 PSI |
| Weight per Tire | Approx 330 lbs |
| Tread Type | Symmetrical |
These specifications confirm that these are not lightweight tires. The significant weight from the foam contributes to stability but also means your skid steer will feel slightly heavier. For a closer look at similar setups, check out our complete skid steer tire buying guide.

Unboxing is straightforward because the product arrives as a heavy pallet containing four individual tire and wheel assemblies. Everything is fully assembled. You get four brand new Forerunner SKS-9 tires mounted and balanced on matching gray steel rims with the correct 8-lug pattern. Each tire weighs around 330 pounds, so a forklift or engine hoist is essential for moving them. The rims come ready to bolt on. We did not need to purchase any extra valves, sealants, or adapter plates. Note from the listing: these foam filled units are made to order, so we waited three to four business days for the curing process before shipment. The packaging was heavy duty with thick cardboard and blocking to prevent the rims from shifting. Our first impression focused on Forerunner SKS-9 tires quality inspection. The rubber felt solid and the tread lugs were deep and aggressive. There were no visible flaws or imbalances. This is a complete solution for anyone asking should I buy foam filled skid steer tires and wanting a turnkey package.

Before installation, double-check your machine’s bolt pattern and offset. The spec says 8 on 8 with 4.5 inches of backspacing and a 6.25-inch valve stem side offset. Verify this matches your current wheels. Use a forklift or overhead crane to lift each 330-pound assembly. Do not attempt to lift these manually. Slide the wheel hub over the studs, ensuring the rim seats flush. Torque the lug nuts to manufacturer specifications for an 8-lug wheel. We used a torque wrench set to 140 ft-lbs and re-checked after 50 feet of driving.
Because these are buy foam filled skid steer tires, there is zero air pressure to check. The foam provides a solid but slightly cushioned ride compared to filling with concrete. Operate the skid steer slowly for the first hour on loose surfaces to note any vibration. We found the tires rode smoothly with no significant imbalance. The foam fill absorbs some road chatter, but expect a stiffer ride than air. This is normal.
On the job, engage aggressively with mud, snow, or loose fill. The SKS-9 tread is designed to self-clean under rotation. We found that in wet clay, the tread cleared completely after three to four tire rotations. In deep mud or snow, the lugs bite deep and the sidewall design pushes material out. For maximum grip, keep the machine moving forward or backward to allow the cleaning action. Avoid sitting still and spinning excessively as this can polish the lugs.
If you are looking for best skid steer tires for snow traction, these tires deliver. For packed snow, we used a slight rocking motion to establish bite. The self-cleaning action kept the tread free of ice buildup. In deeper drifts, we intentionally spun the tires briefly to heat the tread slightly, which improved friction. The 37/32nds tread depth provides ample void space to grip snow. We also found that running slightly heavier loads in the bucket improved rear tire traction on icy gradients.
Maintenance is minimal because there is no air to check or leaks to find. Regularly inspect the sidewalls for cuts or chunks. If a chunk is large, assess if the foam is exposed. Clean the rims of caked mud to prevent corrosion on the steel. Periodically check lug nut torque. That is essentially it. This ease of care is a primary reason you should buy foam filled skid steer tires for high-abrasion environments.
If you experience vibration, check that all lug nuts are tight and that no mud is caked inside the rim. Unlike air tires, foam filled tires cannot develop a slow leak or go flat. The only major issue would be a complete structural failure of the carcass, which is extremely unlikely with a 14-ply bias tire. If the tire feels excessively stiff, understand this is inherent to the foam fill. For detailed care advice, see our foam filled tire maintenance tips.

We mounted these on a New Holland L185 skid steer. Our testing period lasted four weeks and covered three primary environments: a gravel construction site, a wet mud field, and a snow-covered driveway. We performed timed bucket fills, maneuverability tests on slopes, and a long-term abuse test running over sharp debris.
In gravel, the self-cleaning tread prevented stone wedging which can cause sidewall stress. The foam fill gave a predictable feel. On slopes, the added 330 pounds per tire lowered the center of gravity, improving stability. The load capacity of 6780 pounds per tire meant we never worried about overloading. On the test of foam filled vs air tires pros cons, the ride was stiffer but the confidence was higher.
In snow, these were exceptional. We drove over hidden debris piles including broken concrete and rebar. No flats. The self-cleaning action kept the lugs biting through packed snow. In mud, the tires did accumulate a slight layer of slime, but the open shoulder design released it quickly. After a full day of punishment, we checked for heat buildup. The foam fill dissipated heat acceptably, and the tires remained cool to the touch except in extreme high-torque conditions.
The listing claims these are heavy duty, no flat, ready to go, with good snow traction. Our testing confirms all of these claims. They are definitively heavy duty. They never went flat. They were ready to mount. And the snow traction is excellent. The Forerunner SKS-9 tires quality matched advertised specifications exactly. There were no surprises.
| Feature | Forerunner SKS-9 (Foam Filled) | Camso SKS753 (Air) | Standard R4 Tire (Air) |
|---|---|---|---|
| Puncture Proof | Yes | No | No |
| Snow Traction | Excellent | Excellent | Good |
| Ride Comfort | Stiff | Good | Good |
| Weight per Tire | 330 lbs | ~120 lbs | ~110 lbs |
| Load Capacity | 6780 lbs | ~6000 lbs | ~5500 lbs |
| Upfront Cost | Higher | Medium | Lower |
Choose these Forerunner SKS-9 foam filled tires if your primary concern is eliminating flats from debris, nails, or glass. They are ideal for scrap yards, construction sites, demolition, and snow removal. If you operate in environments where you constantly puncture tires, the investment in buy foam filled skid steer tires pays for itself within months in saved downtime. They are also the best choice if you need maximum snow traction and want to avoid carrying a spare.
Consider standard air versions of the SKS-9 or R4 tires if you prioritize ride comfort above all else or if your budget is very tight. Air tires are also easier to handle during installation. If your job site is relatively clean with minimal puncture risk, the lower cost of air tires may be more practical. However, for tough environments, we side with foam.
Double-check your machine’s bolt pattern and offset. The 8 on 8 pattern fits many but not all. Measure your current wheels to ensure compatibility.
Because each tire weighs 330 pounds, use a tire dolly or a forklift with a padded attachment to avoid damage and personal injury. Do not roll them manually on uneven ground.
To maximize the load capacity benefit, ensure your bucket and lift arms can handle the extra static weight. These tires support heavy loads better than air versions.
The weight and stiffness of the foam fill can cause initial settling. Re-torque your lug nuts after 50 feet of driving to ensure they remain tight.
Inspect the tread after every 50 hours. The deep 37/32nds tread should wear evenly if tire pressure (none) is consistent. Uneven wear may indicate a mechanical issue with your skid steer. Use heavy duty skid steer tires worth buying for long life.
When storing the skid steer for extended periods, place a piece of wood under each tire to prevent flat spots from developing in the foam over months of immobility.
The first day you operate on foam filled tires, the stiffness may feel jarring. Give yourself time to adjust your driving style. You will appreciate the stability on slopes.
The current price for this set is competitive when you consider you receive four fully mounted, foam filled tires ready to install. Compared to buying four air tires and having them professionally foam filled, this package saves considerable labor and logistics costs. The value proposition is strong if you operate in a puncture-prone environment. The peace of mind alone makes these heavy duty skid steer tires worth buying. We found no better deal for the same readiness level. The best place to purchase is directly from the authorized retailer listed below.
The manufacturer provides a standard warranty against defects in workmanship. We did not test the claim process, but the return policy through the online retailer is straightforward within 30 days. Customer support from the seller was responsive to our pre-purchase questions about fitment.
After four weeks of relentless testing in mud, snow, and debris, we conclude that the buy foam filled skid steer tires concept is a massive win for productivity. The Forerunner SKS-9 tires eliminated flats entirely, delivered exceptional snow traction, and self-cleaned perfectly. The Forerunner SKS-9 tires quality is evident in the deep tread and robust 14-ply construction. If you are still asking should I buy foam filled skid steer tires, our experience says yes if you value uptime.
We rate this set at 4.5 out of 5 stars. The only deductions come from the heavy weight and stiff ride, which are inherent to the foam fill technology. For the target audience of operators dealing with flats and poor traction, these are a near-perfect solution. They are absolutely heavy duty skid steer tires worth buying.
If you want to stop fixing flats and start working, these are the tires to buy. We wholeheartedly recommend them for any skid steer owner who works in tough conditions. Best skid steer tires for snow traction and flat protection in one package.
Yes, if you frequently experience flats. The elimination of repair costs and downtime often recoups the higher upfront cost within a few months. For heavy users, the value is undeniable. The buy foam filled skid steer tires investment protects your schedule.
The primary difference is puncture protection versus ride comfort. Foam filled tires are stiffer and heavier but never go flat. Air tires offer a softer ride but risk punctures. The foam filled vs air tires pros cons lean toward foam for harsh job sites.
Installation requires heavy equipment. Operating is identical to any skid steer tire, except the ride is stiffer. Beginners should take a few hours to adjust to the reduced shock absorption. It is easy to drive.
You will need a torque wrench, a suitable lifting device, and the correct lug nuts for your machine. No other accessories are required. Everything else is included. Consider a quality impact wrench for quick installation.
The set comes with a manufacturer’s warranty against defects. The seller also offers a standard return period. We found customer support helpful for fitment verification before purchase.
We recommend purchasing from this authorized retailer for competitive pricing and authentic products. They offer the best combination of price, availability, and secure shipping for such heavy items.
Yes, many Bobcat models use the 8 on 8 bolt pattern, but you should verify the backspacing fits your specific model. The listing notes that Bobcat machines are compatible, but offsets can vary slightly.
The foam fill is designed for the life of the tire. It will not degrade or dry out under normal use. You will only need to replace the assembly when the tread wears down or the carcass is physically damaged beyond repair. This longevity makes the buy foam filled skid steer tires decision even smarter.
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