Tyre speed and index and insurance

i57dwun4yb1pt8

anyone know if you go above the speed index and load rating for your car , it will cause insurance issues ?

say the car is 91 h but you can only get 95 v or 95 w ?

thanks

biko

It will not, get any tyre speed rating you like.

i57dwun4yb1pt8

but don't go below it right ??

Spook_ie

As the lowest speed rating N is sufficient to exceed the speed limit of 120kph on the motorway then usually no, however, if you were involved in a crash and your speed was exceeding the rating of the tyre ( N = 140 ) I would expect you to be charged with dangerous driving rather than careless (IMO)

As a point of interest both V and W rated tyres are rated higher speed than the H
H=210
V=240
W=270

CiniO

Looks like there is no law in Ireland requiring to have tyres with speed rating stated in cert of confirmity for the car prepared by manufacturer.

Correct me if I'm wrong, but normally car requires tyres with higher speed rating than car maximum speed. So f.e. car which can do 220km/h will require V tyres, as H are only up to 210km/h. And pretty much anywhere in Europe it's illegal to drive at tyres with lower speed rating than specified in cert of conformity.

In Ireland though, looks like that tyres with speed rating grater than 120km/h are fine. That's fairly dangerous, as someone might get caught driving faster on not adequate tyres, and cause accident. And I strongly doubt every driver checks tyres speed rating everytime he drives the car he doesn't know.

To answer OP's question - you will be fine no problem using tyres with higher load and speed rating. However take note, than higher load rating (95 instead of 91) will cause harsher ride.

pheelay

CiniO wrote: »

Correct me if I'm wrong, but normally car requires tyres with higher speed rating than car maximum speed. So f.e. car which can do 220km/h will require V tyres, as H are only up to 210km/h. And pretty much anywhere in Europe it's illegal to drive at tyres with lower speed rating than specified in cert of conformity.

yup, certainly my experience living in France. Tyre fitters refused to replace the ZR speed rated tyres (factory fitted by manufacturer), until he saw documentation that stated a lower rating is allowed on the car.

Not the same story in Ireland it seems.

Special Circumstances

pheelay wrote: »

yup, certainly my experience living in France. Tyre fitters refused to replace the ZR speed rated tyres (factory fitted by manufacturer), until he saw documentation that stated a lower rating is allowed on the car.

Not the same story in Ireland it seems.

Yeah my local tyre place in limerick have no problem quoting for V rated but fitting T rated and hoping you don't notice.

Der black an der round shur.