The wear rate, produced by a modified Lambourn abrader, of rubber tread compounds, depends on the normal load, frictional force, the grit size and the number of grits per unit area of the grindstone. A preliminary model for the wear rate incorporating the grindstone characteristics, the normal and frictional force, and the fatigue exponent of the compound has been developed. The model needs further refinement but predicted the wear rate of SBR and EXXPRO™ rubber compounds well enough to be developed further. The current major limitation is accurate characterization of the grindstone.