The only option for the ATV Forwarding Arch are the high load tires.  Standard tires are an ATV-type low pressure flotation tire.  They are only rated at 1100 lb per pair and squash down under higher loads.  The standard tire can be intermittently inflated harder, but if heavier logs are moved on any regular basis, the High Load tires are recommended.  The High Load tire is a 30psi turf-type tire with a smoother tread and a much higher load capacity. Rated at 2600 lb per pair, it can handle the heaviest log with ease.  We also have a larger diameter tire, rated at 3400 lb per pair, which is over the rated capacity of the arch.  *Arch capacity is determined by the spindle rating at 2000lb.