It is the maximum speed your tire is made for. It is indicated by the last letter on the tire designation. - eg, 215 65 R15 95 H - the H is speed rating.
Get a tire with a speed rating of S or T.
108=the load rating per tire is 2205 lbs S=the speed rating on this tire is 112 mph
The H is the speed rating. The H rating means the tire has a speed rating of up to 130 mph. http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=35
That is the speed rating of the tire, S, followed by an R which indicates the tire is a radial tire. The S speed rating indicates the tire is designed to run at a sustained speed of 106 mph and no more.
A ''Z'' tire means that the top speed rating of the tire is not designated, and you must consult the manufacturer to obtain the rating. A ''W (ZR)'' tire's top speed rating is 270 km/h or 168MPH. A ''Y (ZR)'' tire's top speed rating is 300 km/h or 186 MPH. A ''ZR'' tire is rated at top speed of 300 km/h or 186 MPH, AND ABOVE. No, ''Z'' tires, and ''ZR'' tires are not the same.
H speed rating is 130 mph maximum.
A "T" speed rating means the tire was tested to withstand at least a constant 118 mph....... An "H" rating 130.
Symbol Speed Speed (km/h) Speed (mph) A153A2106A3159A42012A52516A63019A84025B5031C6037D6540E7043F8050G9056J10062K11068L12075M13081N14087P15094Q160100R170106S180112T190118U200124H210130V240149W270168Y300186
specification Speed rating.
A z rating on a tire is a speed rating, for most u.s. roads an h rated tire is fine, check with local tire dealer
Speed rating applies to a tire rating. It is a standard set by the US government for achieving and keeping a specified speed. A higher speed rating means better car handling.
Symbol Speed Speed (km/h) Speed (mph) A153A2106A3159A42012A52516A63019A84025B5031C6037D6540E7043F8050G9056J10062K11068L12075M13081N14087P15094Q160100R170106S180112T190118U200124H210130V240149W270168Y300186