Product Description
XL LOAD WHEEL
Frequently Asked Questions
Q: When do I need SU S855-XL instead of standard SU S855?
A: SU S855-XL is designed for lift trucks with larger hub bore specifications and higher load frames. Check your truck nameplate for frame designation. If your truck is rated above 6000 lb and has an 8 inch hub-to-hub measurement, you must use SU S855-XL to avoid safety issues.
Q: What is the load rating for SU S855-XL?
A: SU S855-XL is rated for 8000 lb static load capacity, 2000 lb higher than the standard SU S855. This wheel is built with a reinforced hub and thicker rim. Do not use on lower-capacity trucks as it adds unnecessary weight and reduces handling responsiveness.
Q: Is SU S855-XL a direct bolt-on replacement?
A: No. SU S855-XL requires verification of axle diameter and hub spacing before installation. The bolt pattern may differ from standard S855. Measure your existing wheel hub and compare dimensions in the spec sheet. Forcing an XL wheel onto a standard axle causes binding and premature bearing failure.
Q: What tire size is standard for SU S855-XL?
A: SU S855-XL uses a 6.50-8 pneumatic tire. Do not substitute with a smaller 5.00-8 tire as this reduces load capacity and creates height misalignment. Always order tires and wheels as a matched set to ensure proper truck geometry.
Q: How do I diagnose if my truck needs SU S855-XL instead of SU S855?
A: Check your truck capacity nameplate. If rated 6000 lb or higher and the truck feels unstable or wheels deflect under load, upgrade to SU S855-XL. Also inspect the current wheel hub for cracks or damage. Undersized wheels on over-capacity trucks cause stress fractures and sudden failure.
Q: What is the shelf life and storage requirement for SU S855-XL?
A: Unmounted SU S855-XL wheels have a 24-month shelf life if stored indoors at controlled temperature. Keep tires out of direct sunlight and extreme heat. Mounted assemblies should be rotated every 6 months during storage. Check tire pressure monthly to prevent flat spotting.