| http://www.w3.org/ns/prov#value | - Probably wishful thinking though!Not quite true.It *is* a surface treatment *but* the benefit of hardening influences a significant depth of material on the brake tracks below the black surface coating, which is itself also extremely hard - however, road debris such as sand or small pieces of grit / stone trapped in a brake block long-term will score through the black finish.The pro-teams have, as
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