Tire Speed Rating Question
01-31-2007, 06:46 AM
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I recently ruined my Dunlop RFTs. My 550 comes with Y speed rating. I'm planning on replacing only one tire. The replacement has a speed rating of W. Can this cause problem?
01-31-2007, 06:58 AM
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Originally Posted by BigL' post='385814' date='Jan 31 2007, 03:46 PM
I recently ruined my Dunlop RFTs. My 550 comes with Y speed rating. I'm planning on replacing only one tire. The replacement has a speed rating of W. Can this cause problem?
Y Speed rating is up to 186
W is up to 168 mph
Stick to Y rated.
It is not just about top speed but also the ability of the structure of the tyre to handle the forces of acceleration and braking the car develops.
http://www.carbibles.com/tyre_bible.html#speed
01-31-2007, 07:53 AM
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Originally Posted by BigL' post='385814' date='Jan 31 2007, 10:46 AM
I recently ruined my Dunlop RFTs. My 550 comes with Y speed rating. I'm planning on replacing only one tire. The replacement has a speed rating of W. Can this cause problem?
Try the Tire Rack. You can order online, and they'll get the tire there in a day or two. They have the Ys... $299 for fronts, $339 for rear OEM Dunlops for your car. Likely where any tire shop will order them from and then mark it up.
01-31-2007, 08:05 AM
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Originally Posted by KAF' post='385825' date='Jan 31 2007, 07:58 PM
Y Speed rating is up to 186
W is up to 168 mph
Stick to Y rated.
It is not just about top speed but also the ability of the structure of the tyre to handle the forces of acceleration and braking the car develops.
http://www.carbibles.com/tyre_bible.html#speed
W is up to 168 mph
Stick to Y rated.
It is not just about top speed but also the ability of the structure of the tyre to handle the forces of acceleration and braking the car develops.
http://www.carbibles.com/tyre_bible.html#speed
I also knew that Y rating is the highest speed level, right? Allthough i can't find it in the table from that link...that table shows W as the highest (although i'm sure it's Y)
01-31-2007, 08:53 AM
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Originally Posted by BigL' post='385814' date='Jan 31 2007, 03:46 PM
I recently ruined my Dunlop RFTs. My 550 comes with Y speed rating. I'm planning on replacing only one tire. The replacement has a speed rating of W. Can this cause problem?
If Y is listed then always stick to that minimum...
01-31-2007, 08:53 AM
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Originally Posted by BetterMakeWay' post='385853' date='Jan 31 2007, 05:05 PM
Wow very informative link. Thanks for sharing.
I also knew that Y rating is the highest speed level, right? Allthough i can't find it in the table from that link...that table shows W as the highest (although i'm sure it's Y)
I also knew that Y rating is the highest speed level, right? Allthough i can't find it in the table from that link...that table shows W as the highest (although i'm sure it's Y)
True it is missing
Look here
http://www.tirerack.com/tires/tiretech/tec...e.jsp?techid=35
02-02-2007, 06:53 PM
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No matter what car you have, I think all 4 tyres must be the same make and same spec unless the the real 1s a wider. which some car are but still the same make
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