Treated Natural Rubber increased hardness, better wear characteristics, less rolling resistance and less bite than Natural Rubber
Great for Medium Banked tracks.
Magnesium Hub - more bite than Plastic hubs at the same weight.
The entire JK Products tire line are produced with a factory tolerance +0.010" to +0.020" of the specified diameter. e.g.: 0.700"D will be finish sized between 0.710" and 0.720" Diameter unless otherwise noted