I've just been trying on some snow chains (in the dry!) without much success. The fitting instruction lists my tyres 215/70-15 but I found that the red fastener, which is supposed to loop through a red ring then cross the wheel before connecting with a yellow chain link is far too short - it barely goes through the red ring. Is this normal for a chain that lists 29 different tyre sizes for this particular model? It is Ultimate Speed Size 100 Delta-Sport-Nr. SK-1437, of German manufacture from a very well known supermarket chain(!). I've emailed the service dept but I was wondering if any Funster could offer some sensible(!) advice.