Tyre for vehicle hired wheels, method of verification of correct values of air pressure within a pneumatic wheel of vehicle hired device, acoustic signals to wheels of the vehicle hired.And, the tread for pneumatic vehicle hired, method to indicate the reduction in inflation pressure of a pneumatic.

摘要

"Tyre wheels of vehicle hired, method of verification of correct values of air pressure within a pneumatic wheel of vehicle hired device, acoustic signals to wheels of the vehicle hired.And, the tread for pneumatic vehicle hired.Method for indicating the reduction in inflation pressure of a pneumatic tyre provided with "a pattern of tread pattern formed by two lateral rows of grooves and at least one TerceirThe central sulcus. All the grooves are separated from each other so as to produce a pattern that does not have any way of intercommunication.The grooves of the third row have ends that are far from the shoulders of the tyre and the parts of the end extending out of the trade mark of the tyre.