Cheers for that andy. The reason I needed to know that was I got these
http://cgi.ebay.co.uk/ws/eBayISAPI.d...:X:RTQ:GB:1123 the other day and the rears are exactly 10" wide and I was hoping to get them in the standard rear arch. That dimension puts the inside edge of the tyre 40mm off the body so I have to shorten the bones a bit or get some slightly wider wings.
Bob