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Are you looking for improved rollability and extra capacity in a resilient polyurethane tread wheel? If so, the Superlast XC 70 durometer polyurethane (Shore D) wheel will deliver.
Because the polyurethane is harder than standard 95A poly, these wheels roll more easily and carry up to 30% more capacity - thus the suffix XC, as in eXtra Capacity!
All Superlast XCs models effectively repel foreign objects and debris, and feature a 1" thick polyurethane wheel tread which is chemically bonded to a forged steel core.
. This wheel includes a Roller Bearing with a caster hub length of 4-1/4".