Product Description
Poly Press-On
Specifications: 10.500 inch diameter x 4.500 inch width (10.500" x 4.500" | 10.5 x 4.5 wheel | 10-1/2 x 4-1/2 | 266.70mm x 114.30mm)
Specifications
Wheel Specifications
| Outside Diameter (in) | 10.500 |
| Width (in) | 4.500 |
| Outside Diameter (mm) | 266.70 |
| Width (mm) | 114.30 |
| Drive Tire Profile | Smooth Flat |
| Material | Polyurethane |
Frequently Asked Questions
Q: What is the hub bore size and fitment specification for SU 10.5x4.5x8-SF-P?
A: SU 10.5x4.5x8-SF-P is a press-on tire with an 8.0 inch hub bore. Outside diameter is 10.500 inches and width is 4.500 inches (266.70mm x 114.30mm). This narrower width is commonly found on single-wheel drive applications or older lift truck models. Do not attempt to fit this tire on 6.0, 6.5, or 7.0 inch hub bores. If you are unsure of your hub bore size, measure the inner bore diameter before ordering.
Q: What is the difference between this SU 10.5x4.5x8 and the wider 10.5 x 5 models?
A: The primary difference is width: this model is 4.500 inches wide versus 5.000 inches for standard models. The narrower profile reduces load capacity by approximately 10-15% compared to wider tires. The narrower design is lighter and generates less rolling resistance. Choose the 4.500 inch width only if your truck manufacturer specifies this dimension. Using the wrong width causes steering and stability issues.
Q: Is this a press-on tire, and what does that mean for installation?
A: Yes, this is a press-on tire design. Press-on tires are bonded adhesively to the hub and do not use bolts. Installation requires a tire press with minimum 8-ton capacity and specialized adhesive formulated for polyurethane and metal bonding. Do not attempt hand installation. After pressing, allow the adhesive to cure for 24 hours before operating the truck. Improper installation results in tire separation during use, creating immediate safety hazards.
Q: What maximum load can this narrower drive tire support?
A: SU 10.5x4.5x8-SF-P typically supports 900-1100 lbs per tire depending on axle configuration. The narrower profile and reduced contact area result in lower load capacity compared to 5.0 inch width tires (1200-1500 lbs). Exceeding the rated load causes permanent deformation, uneven wear, and accelerated failure. Verify your truck load rating in the operator manual. Do not exceed the tire load limit even if the trucks motor could theoretically handle more weight.
Q: How do you remove and replace a press-on tire that has failed?
A: Removal of a press-on tire requires industrial equipment. Do not attempt to pry off a tire or use heat to soften the adhesive, as this damages the hub permanently. Contact a certified lift truck service center or tire shop equipped with a press capable of pulling press-on tires. The procedure typically takes 1-2 hours per tire and includes adhesive residue removal from the hub. After removal, the hub surface must be cleaned and prepped before installing a new tire.
Q: What are the early warning signs that this drive tire needs replacement?
A: Replace the tire if you observe flat wear across the entire surface, chunks of material missing, visible cracks, or if the tire does not sit flush on the hub (indicating adhesive failure). Listen for squeaking or squealing sounds during operation, which indicate tire slippage on the hub. If acceleration becomes sluggish or steering feels unresponsive, inspect the tire for damage. Do not attempt to repair a damaged press-on tire; replacement is the only safe option.