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Old 31.03.2017, 12:11
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Buying summer tires with higher speed rating than needed

I have to purchase new summer tires (www.popgom.ch). Service from these guys is great. The car - Zafira only needs H speed (210 kph) but most tires (205/55/R16) are sold in V rating (240 kph) as the most popular speed rating.

I was planning to buy the V rating, but for some reason the W rated tire (270 kph) - same model, is selling for a bit less than the V rated tire. Are there any issues of putting W rated tires on the car (all 4) rather than V that I normally buy for summer tires?

Anyone have any comments/suggestions. Many thanks.
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Old 31.03.2017, 12:13
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Re: Buying summer tires with higher speed rating than needed

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I have to purchase new summer tires (www.popgom.ch). Service from these guys is great. The car - Zafira only needs H speed (210 kph) but most tires (205/55/R16) are sold in V rating (240 kph) as the most popular speed rating.

I was planning to buy the V rating, but for some reason the W rated tire (270 kph) - same model, is selling for a bit less than the V rated tire. Are there any issues of putting W rated tires on the car (all 4) rather than V that I normally buy for summer tires?

Anyone have any comments/suggestions. Many thanks.
No problem at all. Look at the manufacture date of the tyres, they may be old stock.
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Old 31.03.2017, 12:17
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Re: Buying summer tires with higher speed rating than needed

Thanks for that. Good point that there might be less turn-over in the W speed. The V speed seems to be the fastest moving model in most brands. There is no mention on the website of old stock (they do say so in one or two brands) so I am "assuming" that they are 2017 production.
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Old 31.03.2017, 12:20
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Re: Buying summer tires with higher speed rating than needed

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Thanks for that. Good point that there might be less turn-over in the W speed. The V speed seems to be the fastest moving model in most brands. There is no mention on the website of old stock (they do say so in one or two brands) so I am "assuming" that they are 2017 production.
With rifendirect, I never had tyres more than a couple of months old in about 20 orders to date.
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Old 31.03.2017, 13:50
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Re: Buying summer tires with higher speed rating than needed

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I have to purchase new summer tires (www.popgom.ch). Service from these guys is great. The car - Zafira only needs H speed (210 kph) but most tires (205/55/R16) are sold in V rating (240 kph) as the most popular speed rating.

I was planning to buy the V rating, but for some reason the W rated tire (270 kph) - same model, is selling for a bit less than the V rated tire. Are there any issues of putting W rated tires on the car (all 4) rather than V that I normally buy for summer tires?

Anyone have any comments/suggestions. Many thanks.
The higher the speeding rating, the better, regardless of the speed you drive. Higher speed rating tyres are more reinforced than lower speed ratings and thus less prone to punctures and damages. If it's cheaper, it's a no-brainer.
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Old 31.03.2017, 17:12
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Re: Buying summer tires with higher speed rating than needed

I had new summer tires put on last year and had nothing but troubles (crazy vibration starting at about 100/110km/h). No it was not badly balanced, we checked that and it's not the car as the moment the winter tires went back on everything was wonderful).

The DOT number should have 12 digits, I checked (on both sides of the tire) and only have this strange DOT-number DOT T7DH AK H 1909.
If the number had 12 digits the last four digits would tell the week/year of production.

Is it possible that the 1909 is week 19 of 2009??
And is it truly possible that I got them put on in 2016?!
That would explain why they're crap, no?

buying-summer-tires-higher-speed-rating-than-needed-dot_no.tires.jpg
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Old 31.03.2017, 17:50
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Re: Buying summer tires with higher speed rating than needed

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I had new summer tires put on last year and had nothing but troubles (crazy vibration starting at about 100/110km/h). No it was not badly balanced, we checked that and it's not the car as the moment the winter tires went back on everything was wonderful).

The DOT number should have 12 digits, I checked (on both sides of the tire) and only have this strange DOT-number DOT T7DH AK H 1909.
If the number had 12 digits the last four digits would tell the week/year of production.

Is it possible that the 1909 is week 19 of 2009??
And is it truly possible that I got them put on in 2016?!
That would explain why they're crap, no?

Attachment 124072
1909 is indeed 19th week 2009.

I can't find an explicit mention of maximum age of tires in the Swiss law, but there are a few relevant discussions here and here.

The guys I know won't mount "new" tires if they are 2-4 years old and most of them will tell the customer that it's time to start thinking about new tires when yours are about 6 years old.

And they will also return any "new" tires which aren't new to the supplier, and will refuse to deal with that supplier in future.
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Old 31.03.2017, 17:57
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Re: Buying summer tires with higher speed rating than needed

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1909 is indeed 19th week 2009.

I can't find an explicit mention of maximum age of tires in the Swiss law, but there are a few relevant discussions here and here.

The guys I know won't mount "new" tires if they are 2-4 years old and most of them will tell the customer that it's time to start thinking about new tires when yours are about 6 years old.

And they will also return any "new" tires which aren't new to the supplier, and will refuse to deal with that supplier in future.
WOW, problem solved then I guess. Ah well, new one: Unexpected investment in new tires next month
(Who is able to use his tires for 6 seasons? Even the Swiss roads aren't made of silk. LOL)
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Old 31.03.2017, 18:25
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Re: Buying summer tires with higher speed rating than needed

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WOW, problem solved then I guess. Ah well, new one: Unexpected investment in new tires next month
(Who is able to use his tires for 6 seasons? Even the Swiss roads aren't made of silk. LOL)
If your tires had some internal delamination then it is entirely possible that they could balance perfectly well on the machine, but vibrate on the car. The balancing machine does not check the tire under load, so if the sidewall has a soft spot then that would only manifest itself when the wheel is on the car, carrying a load.

For a regular daily driver the tires are usually worn out by the time age becomes a question.

But for Oldtimers, where you're only legally allowed to drive 3000km/year the tires can easily reach 10 years without appearing to have any appreciable wear. And yes, it is tedious to explain to some owners that although they still have more than enough profile they should nonetheless purchase new tires.
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Old 26.04.2017, 15:22
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Re: Buying summer tires with higher speed rating than needed

Just to tie this thread up, I got the tires - W rating - from Popgom.ch as mentioned. They were manufactured 0817 so nice and fresh.

Will be on the car tomorrow since I figure we should be more or less safe now (since we live at 421 meters).
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Old 26.04.2017, 17:06
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Re: Buying summer tires with higher speed rating than needed

"But for Oldtimers, where you're only legally allowed to drive 3000km/year"

If that's true, it's sad
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Old 26.04.2017, 17:22
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Re: Buying summer tires with higher speed rating than needed

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"But for Oldtimers, where you're only legally allowed to drive 3000km/year"

If that's true, it's sad
The answer is to have several Oldtimers so you can always be driving one - like a neighbour of ours.
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Old 26.04.2017, 17:27
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Re: Buying summer tires with higher speed rating than needed

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The answer is to have several Oldtimers so you can always be driving one - like a neighbour of ours.
Is this why muslims have 4 wives ?
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Old 26.04.2017, 17:42
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Re: Buying summer tires with higher speed rating than needed

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"But for Oldtimers, where you're only legally allowed to drive 3000km/year"

If that's true, it's sad
True when you want to profit from the lower oldtimer road tax, more than two cars per plate, and extended MFK periods. Not true if you register it just like a normal car and pay standard road tax, max. 2 cars per plates, and 2 year MFK schedule.
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Old 30.04.2017, 20:15
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Re: Buying summer tires with higher speed rating than needed

Ah, then it's fair. I thought it was mandatory once the car was a certain age.
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Old 01.05.2017, 08:27
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Re: Buying summer tires with higher speed rating than needed

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The higher the speeding rating, the better, regardless of the speed you drive. Higher speed rating tyres are more reinforced than lower speed ratings and thus less prone to punctures and damages. If it's cheaper, it's a no-brainer.
Of course the counter-argument is "you're never going to get your tires in proper operating temperature", but I guess 99% of all driving happens at 10% of the grip limit so why bother
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Old 01.05.2017, 10:36
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Re: Buying summer tires with higher speed rating than needed

are tires with a higher speed rating actually different?
asking because of production of 1 model, 1 size in 3 different speed ratings could be more expensive than 1 rating and 3 different codes.
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Old 02.05.2017, 11:41
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Re: Buying summer tires with higher speed rating than needed

Higher speed rating means the tire is generally "harder" to cope with the increased centrifugical forces that the higher speeds bring.
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Old 15.05.2017, 11:44
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Re: Buying summer tires with higher speed rating than needed

Typically, there is a huge difference in feel also between H and V rated tires. I switched to toyo tires in V-rated and immediately I felt an improvement in ride and control.
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