Mastercraft Avenger Touring LSR Touring Radial Tire - 215/55R16/SL 93H Coupled Silica Tread Compound The chemically coupled silica and carbon black compound allows for superior wet traction without sacrificing tread wear. An optimized polymer matrix allows the compound to remain pliable at lower temperatures while contributing to lower rolling resistance. Innovative 5-Rib All-Season Tread Design The innovative 5-rib tread design incorporates numerous features to provide for excellent stability, traction and treadwear.