Designed for use on trailers - Designed for use on trailers - Symmetric ribbed tread pattern and a durable compound, the RT809 provides a better dry, wet, and winter grip - Symmetric ribbed tread pattern and a durable compound, the RT809 provides a better dry, wet, and winter grip ...Designed for use on trailers - Designed for use on trailers - Symmetric ribbed tread pattern and a durable compound, the RT809 provides a better dry, wet, and winter grip - Symmetric ribbed tread pattern and a durable compound, the RT809 provides a better dry, wet, and winter grip - Ribbed footprint with extra biting edges enhances rubber flexibility - Ribbed footprint with extra biting edges enhances rubber flexibility - Circumferential grooves channel water and slush from the footprint reducing hydroplaning - Circumferential grooves channel water and slush from the footprint reducing hydroplaning - Strong radial structure improves driving and towing stability - Strong radial structure improves driving and towing stability