Post by Phil Nottingham on Jan 16, 2008 17:14:36 GMT
;)Tyres crop up regularly on this Forum.
Use of incorrect tyres contravenes the Construction & Use regs and will invalidate your insurance
The insurance company must also be notified if non standard wheels or tyres not of the X ply equivalent are used (185/15 or 205-70/15 SR or VR is the apparent equivalent but you must confirm this yourself
) 
The wide 205/70 being far more common as is used by Jag XJ6's is actually far to low really - it needs 225/70 to give similar rolling distance but this may cause clearance issues. 
Using 8 ply Van tyres whether radial or X ply is not a good idea either
This site is full of useful data
www.tyresave.co.uk/tyrspeed.html
Also do not forget tyres have a shelf life and 10 years is considered to be max life whether tread is worn or not
Use of incorrect tyres contravenes the Construction & Use regs and will invalidate your insurance
The insurance company must also be notified if non standard wheels or tyres not of the X ply equivalent are used (185/15 or 205-70/15 SR or VR is the apparent equivalent but you must confirm this yourself
) 
The wide 205/70 being far more common as is used by Jag XJ6's is actually far to low really - it needs 225/70 to give similar rolling distance but this may cause clearance issues. 
Using 8 ply Van tyres whether radial or X ply is not a good idea either
This site is full of useful data
www.tyresave.co.uk/tyrspeed.html
Also do not forget tyres have a shelf life and 10 years is considered to be max life whether tread is worn or not