Vehicle & Technical > Range Rover

Grizzly claws or Anaconda's ???

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Highridge:
Why do people who are about to insult you always say they don't mean to insult you but ....

I shall not be posting replies to these forums again.

Chris, thanks for your help

drmike:
On the offchance that Highridge does look at this again I believe that any Range Rover will have a manufacturers speed rating of 90 mph + and I believe (notice how hedgy I'm being) that this is the value that is used for speed rating.

Hence when I bought my diamnonds for the Defender I was careful to find out what the nominal maximum speed for the vehicle was and buy a diamond tyre with a suitably higher speed rating. Not all of them were suitably rated.

The insurer might agree that the tyres are OK but isn't it a legal requirement to have suitably rated tyres? Bear in mind 4 tyres are probably 3 points each if stopped or worse still in an accident.

Mike

FITZ4X4:
Here's two penneth on Tyre Speed Ratings
For MOT requirements in this country, it is not necessary to fit a tyre with a speed rating to match the original vehicle fitment or the maximum speed of the vehicle. However tyres must be suitable for the purpose for which the vehicle will be used.
This is from the tester manual 'Note: A Class III or IV vehicle tyre which appears to be of inadequate size, ply or speed rating for the vehicle or its use is not a reason for rejection.  However, the vehicle presenter should be informed.'
The vehicle manufacturer has to use a tyre with a rating to match the maximum speed of the car because when it leaves the factory he does not know exactly where the car is going or for what purpose it might be used. You might want to use the car in a country where higher speed limits apply than the UK (Germany) or take it to a race track at the weekend.

Insurance companies might say that a vehicle should be fitted with the tyres having the speed rating recommended by the car manufacturer: but even if you fit Z-rated tyres for speeds over 150 mph they will not insure you if you drive in excess of 70 mph in this country! However they may still say your insuance is invalide and refuse a claim.

You should not fit tyres with a lower speed rating than the minimum specified by the vehicle manufacturer. Even if you don't drive that fast, the vehicle has been certified by the manufacturer with tyres of the specified speed rating. Using components of a lower specification than this may not be safe and may also invalidate vehicle certification and void your your insurance, hence it is not legal for on road use.
Even a new top quality Mud Terrian like a BF Goodrich is only Q rated for 99 mph. Hence this would not be strictly leagal on a Range Rover or other Land Rover capable of speeds of over 99 mph.

clbarclay:
Minor side point and largely irrelivant due to the overwhelimng trend for fitting 32" or 33" tyres on RRC, but the 205r16 Insa Turbo Special Track is actually 'S' speed rated which complys with the manufactures recomended minimum speed rating for RRC tyres.
http://www.4site4x4.co.uk/tyre-details.aspx?id=64

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