STOP THORN ULTIMATE (STU)
Extremly thick approx. 4 mm rubber buffer produced from a special compound placed between tread and carcass. Thanks to its properties and size it prevents from puncture or cutoff by majority of sharp objects under standard usage. While riding in traffic riders safety is enhanced by reflex stripe applied on every STU tyre. The buffer increases stiffness and strength in the crown area and such reduces drag while keeping adhesion.