This example shows a tyre width of 3.5 mm for Gauge 0 Fine.
	For Scale7 remove more metal from the back of the wheel to give a tyre thickness of 3.2 mm instead of 3.5 mm.	
	
			
		3′ 2″ diam., 12 oval spokes, apparent tread 4¾″.
		Hub 12½″ face dia., ¾″ out from the tyre.
			
		Casting: 22.2 mm tread dia., i/d 16.6 mm.
		Hub 0.4 mm out from the tyre.
Casting prices and stock . LNER loco sets, price list
Scan of a casting in a set for a LNER 4-6-0 B17 with a LNE pattern tender
	
	27 Mar 2013