Also asked this question before about speed rating to greenlight and H is 130mph and your never going to be doing that on UK roads in winter, they were totally happy for me to use them.
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Heres what greenlight said
Hi RobH,
Winter tyres tend to have a slightly lower speed rating than standard tyres, but for obvious reasons relating to weather conditions this isn't usually a problem.
We had enquired and clarified the situation with our Underwriters a couple of years ago when we had a really severe dumping of snow, which is when we received confirmation that they were happy with winter tyres.
The rule of thumb is that as long as the tyre is road legal (ie. if it's an older tyre it still meets adequate tread requirements) and is fitted in line with recommendations of the vehicle manufacturer (or qualified tyre fitter) our Insurers will be fine and will not require specific notification of the tyre change.
Like you say, you're not going to be going at 149mph any time soon.
Your V Rated winter tyres will be fine
Kind regards
Tony
P.S. Even "H" rated tyres are rated at 130MPH, which being 60mph beyond the national limit are also more than adequate