Speed Ratings, esp H versus V

[Keoni50]

Currently the door jam spec says 102V and have been wondering about the 102H rating for a '08 GT.

I tried searching for any discussions on the differences but could not find any. One dealer refuses to sell me the 102H tire. Originally he said I needed a 92V and I corrected them.

The 102H from Goodyear is around $115 vs $245 for a 102V.

Anyway is there anyone using a 102H on a '08 GT? (thought) And can someone post some pro and cons if I buy the 102h???

Thanks!

 

[destineal]

L 75 mph 120 km/h Off-Road & Light Truck Tires

M 81 mph 130 km/h

N 87 mph 140km/h Temporary Spare Tires

P 93 mph 150 km/h Q 99 mph 160 km/h Studless & Studdable Winter Tires

R 106 mph 170 km/h H.D. Light Truck Tires

S 112 mph 180 km/h Family Sedans & Vans

T 118 mph 190 km/h Family Sedans & Vans

U 124 mph 200 km/h

H 130 mph 210 km/h Sport Sedans & Coupes

V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars

 

[destineal]

H should be perfectly fine. The dealer probably didn't want to lose that money.

 

[ceric]

Top speed of CX9 is less than 130mph. (I recall it is around 110mph - electronic limited)
H-rated is way enough.
Consider more on other factors such as UTQG than speed rating.

 

[sts7049]

tell the dealer to sell you what you want, or find a new dealer

 

[BRIAN_MP5T]

Just buy what you want on Tirerack or Discount tire direct..

and get them mounted at a local shop..

The Dealer will **** you no matter..

 

[Keoni50]

Thanks for the replies!

I purchased the 102H at a known local tire shop!

Additionally I learned the difference in the H vs the V is a bit more than just speed related. V rating has different sidewalls, softer compound among other things. If I was considering them for the Porsche then the choice would be clearly the V rating.

Thanks again! This is a great forum!!

I'm Keoni50

 

[ceric]

Speed rating highly depends on the tire construction.
Less flexing/vibration at high speed obviously means higher rating
(less heat generated).