Last post on Mar 29, 2008 at 10:30 AM
You are in the Volvo C70
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Volvo C70, Steering, Convertible
#17 of 21 Lucky that I had a slow leak with my 2007 C70
Mar 27, 2008 (10:53 pm)
When I bought my C70 in May of 2007 I noticed the sticker on the window stating that Volvo equipped the car with high-performance tires and to expect a tread life of around 20,000 miles. It struck me as strange that Volvo would put such tires on any of their vehicles. I bought a Volvo to be safe and because it looked sporty and fun - not because I wanted or needed to go around turns at 75 mph. A few months after purchase I noticed a slow leak in one of the tires and visited a shop to have it repaired. I commented that I did not like the ride - too noisy, bumpy and as described on this message board, like "riding on rails." On worn streets with grooves, the car has flung itself to the side as the steering wheel turned by itself around 40 degrees. Really had to hold onto the wheel while driving - tough for someone who usually steers with his knees! Anyway, the tire expert (having been in the business for a few decades) fixed the tire for free and asked me to come back when I needed to buy tires. He mentioned that I would not get 20,000 miles out of the factory tires - he was right, at 17,500 miles I had 0/32nd's on the front. He promised that he would figure out what tire would be less noisy, give me a nicer ride and last longer. Yesterday he installed a set of 4 Hankook tires that are speed rated at 130 mph, as opposed to the Pirelli OEM's that are rated at a ludicrously high 160. I immediately noticed that they are quieter, smoother and less prone to being thrown across the lane. He told me the tires are touted as having a lifecycle of 50,000, but in real-world driving to expect a usable life of about 30,000 miles. And they were less than half the price of the Pirellis. Hope this story connects with any others who share the same feelings. Bob
#18 of 21 Re: Lucky that I had a slow leak with my 2007 C70 [bobparis]
Mar 27, 2008 (11:12 pm)
Thanks for the information Bob. Do you have the 17" or 18" wheels on your C70?
#19 of 21 Re: Lucky that I had a slow leak with my 2007 C70 [volvo_driver]
Mar 28, 2008 (7:08 am)
Oops - should have included that information. I have the 18" Mizram wheels that undoubtedly contribute to the situation since they don't leave much room for rubber. BTW, the tire model # is Hankook Ventus 1004768 (235/40R18)
#20 of 21 Re: Lucky that I had a slow leak with my 2007 C70 [bobparis]
Mar 28, 2008 (4:10 pm)
Yes, with the 18" Mirzam wheels you get high-performance summer tires, P-Zero Rosso's. These will indeed wear out pretty quickly, and are also pretty bad in cold weather (such as below freezing). I'm not positive, but the treadwear rating might be only around 200 or so on these. The 17" wheels come with longer-lasting, (Michelin, I think) all-season tires, albeit not cheap either, as they have the same high-speed rating (Z speed-rating?). I have the P-Zero Rossos, and like them in terms of handling, etc., but will probably go to P-Zero Nero all-season tires when they need replacing, which have a much better treadwear rating (something like 400).
Many tire stores will refuse to put on replacement tires with a lower speed rating than the car originally came with. I don't know if this is by law in some states, or just because the large tire store chains have legal departments that are trying to make sure they don't get sued. In reality a 132-mph H-rated tire is plenty, but I have an older Mercedes that originally came with V-rated tires, and the tire shops now refuse to put anything less on it. It is nice that you have a shop that will apply common sense.
#21 of 21 Re: Lucky that I had a slow leak with my 2007 C70 [rschleicher]
Mar 29, 2008 (10:30 am)
When the tire shop called to tell me what tire would be best he did mention that the speed rating was less than what was "required." He assured me that there would not be a problem. I don't know if he disclosed this for legal or ethical reasons, but either way I feek comfortable with the choice.