The specialized sl2 replaceable heel tread get a grip with the specialized sl2 replaceable heel tread a genuine specialized replacement part for 2013 2014 and 2015 specialized s works shoes comprising of two separate lugs that screw into the sole of the shoe providing grip and reducing wear on the carbon sole specialized sl2 replaceable heel tread features replacement heel tread for specialized 2013 2014 and 2015 s works shoes includes screws black or red and black colou