Product Description
Poly wheel 97a, 4 x 2
Frequently Asked Questions
Q: What does the SU S541-XL poly wheel specification mean?
A: The SU S541-XL is a 4 x 2 inch poly wheel with a 97a durometer rating. The 97a durometer indicates the hardness and stiffness of the polyurethane compound. Higher durometer (97a) means harder, more wear-resistant material suitable for rough or outdoor surfaces. Lower durometer means softer, more grip.
Q: Is the SU S541-XL poly wheel suitable for indoor and outdoor use?
A: Yes. The 97a durometer poly material works on both indoor concrete and outdoor surfaces. It resists cutting and tearing better than softer wheels. However, on very smooth indoor floors, grip may be lower than a softer compound. Test on a sample area if grip is critical for your application.
Q: How does the 4 x 2 size of the SU S541-XL compare to other load wheels?
A: The SU S541-XL is 4 inches in diameter by 2 inches in width, making it larger in diameter but narrower than the SU S534 (3.25 x 6.25 inch) or SU S535 (3.25 x 3 inch). Larger diameter wheels roll more easily over obstacles and uneven surfaces. Narrower width reduces stability compared to wider wheels.
Q: What is the lifespan of the SU S541-XL poly wheel?
A: The 97a durometer poly material typically lasts 24 to 48 months in regular service, longer than softer wheels because of its hardness and cut resistance. Lifespan depends on load, surface type, and frequency. Inspect monthly for cracks, flat spots, or glazing. Replace if the wheel does not roll smoothly or if steering feels heavy.
Q: Is the SU S541-XL a direct replacement for my existing load wheel?
A: Only if your current wheel is also 4 x 2 inches with the same bore specifications. The SU S541-XL is larger in diameter than the SU S534 and SU S535, which are 3.25 inches. Installing a larger diameter wheel may raise the truck ride height and change handling. Verify your original wheel size before ordering.
Q: Can I mix the SU S541-XL with other wheel sizes on the same truck?
A: No. Mixing wheel diameters causes uneven ride height, poor steering, and unbalanced load distribution. All four wheels must be the same diameter and width. If you are upgrading from 3.25 inch to 4 inch wheels, replace all wheels at the same time.