Abstract
This article maintains that some recently developed tyre-stud designs show promise that the safety and convenience factors of studded tyres can be retained with a considerable reduction in the amount of road wear caused by their use. With the built-in capability for adjustment, the new tyre studs are maintained at a nearly uniform protrusion throughout their life time. The coefficient of friction on smooth ice is 75 per cent greater with tyres with these new studs than with identical tyres without studs.