Provided is a stud pin fitted into a pneumatic tire that maintains the performance on ice of the pneumatic tire and that does not easily fall out. Also provided is a pneumatic tire fitted with the stud pin. The stud pin fitted into a tread portion of a pne...

Vehicle tires comprise running surface sections which are provided with spikes in such a way that the number of spikes in sections with the highest spike density is at most by two greater than the number of spikes in sections with the least spike density. ...