Shimano & Sram compatible. Shimano / Sram Compatible. Slick Stainless Steel. Slick Stainless steel. STS - pre-stretched, slick stainless steel spiral-bound cables. Gear Inner cables. An upgrade from basic cables, these stainless steel strands are pre-stretched, then extruded through a die that removes the rough edges resulting in a smooth surface that reduces friction along the length of the cable.