MINI Cooper Forum banner
1 - 9 of 9 Posts

· 5 years with MINI ONE
244 Posts
Discussion Starter · #1 ·
I had my front tyre replaced today with another P3000 175/65 R15 tyre. But have noticed the code on the side of the tyre is different is has 175/65 R15 T and the rest of them have 175/65 R15 H.

Has the garage fitted the wrong tyre? and what is the differents between H and T :confused:

Paul. :(

· Registered
24 Posts
Just checked the pirelli website

their suggested tyre for mini one (summer use) is either a T or H rating. The letter is the max speed suggested for the tyre in kmh

Q 160
R 170
S 180
T 190
H 210

so just make sure you dont drive too fast :D

· Obsessive Not Compulsive
413 Posts
While technically there should be no harm in fitting a T speed rated tire to your One, the fitting shop should have mounted the same as your existing H rated tires.
Likely will cost more though for the higher speed rated tire.

· MINI2 No.1
42,306 Posts
Lets see what Pirelli say:

Within existing Australian legislation, there are no regulations which prohibit the mixing of different tyre patterns, speed ratings or brands. The effects of mixing can be unpredictable and given that it would be impracticable to evaluate the infinite number of tyre combinations for each vehicle model, the following information is intended as a guide.
It is recommended that for optimum performance, cars and light vans should fit matching sets of tyres. Nevertheless, in general terms, the degree of tolerance to tyre mixing can be divided into two categories - those vehicles originally fitted with "T" rated tyres and lower, and those with "H" and above.
Vehicles originally fitted with "T" speed rated tyres or lower are less likely to suffer adverse changes in handling characteristics resulting from random mixing of patterns or major tyre brands. However, unless unavoidable, it is a sensible precaution to confine mixing to a minimum of matched axle sets.
Cars requiring H, V, W, Y or ZR speed rated tyres tend to be progressively less tolerant to tyre mixing as their performance increases. Generally, in these cases it is unlikely that adverse changes in handling characteristics would result from the mixing of patterns or major brands between axles (matched axle sets). Nevertheless, it is prudent to avoid mixing if possible and to use complete matching sets.
For certain high performance cars, matching sets of of vehicle manufacturer approved tyres are recommended to avoid compromising the handling characteristics of the car.
From here:

There's also more information on that page.
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.