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-   XJ XJ6 / XJR6 ( X300 ) (https://www.jaguarforums.com/forum/xj-xj6-xjr6-x300-26/)
-   -   Tyre size - 215/65? (https://www.jaguarforums.com/forum/xj-xj6-xjr6-x300-26/tyre-size-215-65-a-217959/)

Carl Johan Paulsen 05-18-2019 03:01 PM

Tyre size - 215/65?
 
Hello,

I just bought a great X300 from 1994. 4,0 Sovereign. However, the tyres need replacement.

Currently, it has 225/60-16s. But I was wondering, if 215/65-16 could do instead? Or 215/60-16..? They are substantially cheaper..

Thansk in advance.

Best regards

CJ

SleekJag12 05-19-2019 02:20 AM

A few things to consider in your decision (but things you might already know):

The original size is 225/60-16. A variation in width or aspect changes the sidewall height. In this case, a 215/65 will be slightly taller, while a 215/60 will be slightly shorter than the 225/60. A change will slightly affect the speedometer and odometer accuracy. Also, the final drive ratio will be a little different.

More importantly, the original spec for load rating is 97. The 215/60 is usually carries a 94 or 95 load rating. If you look around you can probably find a few in this size with the XL rating which is usually 99. Falken Ziex is one example. Choices are limited. I see that most 215/65 tires are load rated at 98 or above, so no worries there, and many choices.

The original Z speed rating is equivalent to a V rating I believe (V+?). I think it is a good idea to keep to at least an H rating, if not V. But don't take H rated tires out on the Autobahn!

A tire shop might refuse to sell you tires that have a lower load rating (or too low a speed rating) than the originals.

Some non-USA cars have sport suspension which would include wider 8" sport rims. I don't think the narrow 215s would fit or look right on the sport rims.

Carl Johan Paulsen 05-19-2019 04:13 AM

Thank you for the good answer. I know about the pro's and con's in terms of speedometer readings etc. But was also curious if any of you had tried other sizes?

Cheers

CJ

littlelic69 05-22-2019 10:20 AM

Be Careful! My insurance company gave me permission to use lower speed rated tyres than originally specified - and warned that without this authorisation, my insurance cover COULD have been made void!

AL NZ 05-22-2019 01:22 PM


Originally Posted by Carl Johan Paulsen (Post 2072656)
Hello,

I just bought a great X300 from 1994. 4,0 Sovereign. However, the tyres need replacement.

Currently, it has 225/60-16s. But I was wondering, if 215/65-16 could do instead? Or 215/60-16..? They are substantially cheaper..

Thansk in advance.

Best regards

CJ

Carl , for what it is worth, my Daimler 6 (1995 3.2) wafts along beautifully on Michelin Primacy 3ST 225/60 R16s . quiet, good handling, good wear. 120km/h feels like 90.


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