Originally Posted by
AdrianM
It softens the actual asphalt oil that binds the rock/gravel/sand aggregate and increases traction...pretty dramatically. This only works on clean indoor asphalt tracks where the asphalt never oxidizes (no rain, UV exposure indoors).
yeah, it seemed odd to me when i first saw them doing it, but it works, especially for the rubber TC crowd. (foam tires are definitely in the minority,but grip is high with any tire)