Product Description
Poly Press-On, Smooth Crown
Specifications: 13.000 inch diameter x 4.500 inch width (13.000" x 4.500" | 13 x 4.5 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 |
| Material | Cushothane XL 97A |
Frequently Asked Questions
Q: What is the difference between the SU 13X4.5X8-SC-XL and the SU 13x4.5x8-SC-EZ?
A: Both use the Smooth Crown profile. The XL uses Cushothane XL 97A compound, which is harder (97A durometer) than the EZ 85A. The XL compound wears longer and resists cutting better, making it suitable for tougher applications. The EZ is softer for smoother ride and motor protection. Choose based on your floor type and durability needs.
Q: Why would I select the SU 13X4.5X8-SC-XL over a standard polyurethane tire?
A: The Cushothane XL 97A compound provides exceptional wear resistance while remaining non-marking. Use the SC-XL when your truck operates in harsh conditions with abrasive floors, heavy uneven loads, or extended shifts. The harder compound resists chunking and cuts, extending tire life significantly compared to softer formulations.
Q: Is the SU 13X4.5X8-SC-XL suitable for outdoor or material yard use?
A: The SC-XL is rated for indoor warehouse and assembly use only. Although the 97A compound is durable, polyurethane tires cannot handle outdoor conditions like direct sunlight, moisture, or extreme temperature swings. For outdoor use, you need rubber pneumatic or solid rubber tires. Always verify your truck design for outdoor capability.
Q: Can I mix SU 13X4.5X8-SC-XL tires with other tire models on the same truck?
A: No. All drive tires must be the same model and compound. Mixing different tire types or hardnesses will cause uneven load distribution, pulling, and accelerated wear on the softer tires. All steer and drive tires should be the same SU 13X4.5X8-SC-XL if you select this model.
Q: What is the typical replacement interval for the SU 13X4.5X8-SC-XL?
A: Under normal warehouse use, expect 4-6 years of service before replacement is needed. The Cushothane XL 97A compound resists wear better than softer compounds. Heavy use, rough floors, or aggressive loading will shorten this interval. Inspect tires annually for cracks, hardening, or uneven wear.
Q: How do I diagnose if a SU 13X4.5X8-SC-XL needs replacement?
A: Replace if you observe visible cracks, chunks missing from the tread, separation from the base ring, or if the tire has hardened so much it will not flex when pressed. Uneven wear on one edge suggests misalignment; check and correct alignment before replacing. If the tire cannot be removed by hand with a tire spreader, it has likely bonded permanently and must be replaced.
