I thought I'd investigate what tyres were currently available from a specialist old car tyre supplier and found the following interesting detail.
145 tyre width = 142mm
155 tyre width = 148mm
I knew the measurements were nominal but that's a bit too close eh? And also bear in mind that on some brands there is a pronounced shoulder that reduces the effective tread width.
As if finding tyres the width of your choosing wasn't hard enough
Older and more confused than I could ever imagine possible.
A 145 is wider than you need anyway on a standard saloon rim, so a few mm undersize is no problem.
135's are also fine, but no longer available.
Ray. MMOC#47368. Forum moderator.
Jan 06: The Minor SII Africa adventure: http://www.minor-detour.com
Oct 06: back from Dresden with my Trabant 601 Kombi
Jan 07: back from a month thru North Africa (via Timbuktu) in a S3 Landy
June 07 - back from Zwickau Trabi Treffen
Aug 07 & Aug 08 - back from the Lands End to Orkney in 71 pickup
Sept 2010 - finally gave up breaking down in a SII Landy...
where to break down next?
2013... managed to seize my 1275 just by driving it round the block
Well I'm looking at getting wider tyres for van rims. With that sort of rough interpretation of tyre sizes I'm going to have to look very carefully if I'm not to waste my money.
Older and more confused than I could ever imagine possible.