Product Description
Drive Tire, Poly, Smooth Flat
Specifications: 13.000 inch diameter x 4.500 inch width (13.000" x 4.500" | 13 x 4.50 wheel | 13 x 4-1/2 | 330.20mm x 114.30mm)
Specifications
Wheel Specifications
| Outside Diameter (in) | 13.000 |
| Width (in) | 4.500 |
| Outside Diameter (mm) | 330.20 |
| Width (mm) | 114.30 |
| Drive Tire Profile | Smooth Flat |
| Material | Cushothane EZ 85A |
Frequently Asked Questions
Q: What does EZ stand for and how does Cushothane EZ 85A perform compared to harder compounds?
A: Cushothane EZ stands for easy handling. The 85A durometer is a softer, more compliant compound that absorbs vibration and provides smoother operation on rough floors. EZ 85A tires roll with less energy loss than harder compounds, improving truck efficiency and reducing operator fatigue. The trade-off is lower cut and tear resistance, so EZ 85A performs best on cleaner, smoother surfaces. Use this compound for high-efficiency operations on polished floors with lighter to moderate loads.
Q: Can I interchange the SU 13 X 4.5 X 8-SF-EZ with the SU 13 X 4.5 X 8-SF-P smooth flat tire?
A: Both tires have identical 13 x 4.5 x 8 dimensions and smooth flat tread profiles, so they are mechanically interchangeable on the same lift truck. However, do not mix EZ and standard P compound tires on the same truck. The softer EZ compound wears faster and may cause uneven tire wear if paired with harder compound tires. Replace all four drive tires at the same time and use the same compound across the truck for uniform handling and wear characteristics.
Q: Is the SU 13 X 4.5 X 8-SF-EZ rated for outdoor use or does it require indoor operation?
A: The EZ 85A compound is optimized for clean indoor warehouse floors and is not recommended for sustained outdoor or wet use. Exposure to UV sunlight, moisture, and rough outdoor concrete accelerates degradation of the softer compound. Ozone and extreme temperature swings cause premature cracking. If your lift truck operates outdoors, use a harder compound like XL 97A or standard P compound instead.
Q: How do I know if my EZ 85A tire is worn out versus normal break-in wear?
A: New EZ tires show a glossy finish and are slightly slippery during the first 8-12 hours of operation. This is normal break-in. Monitor for excessive wear: if the tire loses noticeable thickness within the first 1-2 weeks of light operation, the compound is degrading prematurely, possibly from chemical exposure or extreme temperature. Measure tread depth at the center and edges monthly. If depth decreases faster than 0.010 inch per week, replace the tire immediately.
Q: What chemicals or floor treatments will damage the SU 13 X 4.5 X 8-SF-EZ compound?
A: Avoid exposure to strong solvents, petroleum oils, silicone-based floor treatments, and acidic cleaning products. These accelerate breakdown of the EZ 85A polyurethane. If your floor is regularly treated with aggressive cleaners or oils, use the harder XL 97A compound instead. Check your warehouse floor maintenance protocol before deploying EZ tires. If floor treatment is unavoidable, inspect the tire compound every two weeks for discoloration, tackiness, or surface breakdown.
