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′ 1¼″ diam., 12 oval spokes, apparent tread 4″. 
  
		Hub 13″ face dia., 1″ out from the tyre. 		
Casting: 21.7 tread dia., 17.0 i/d., hub 0.6 mm out from the tyre.
Casting prices and stock . NE loco sets, price list
Scan of a casting in a set for a LNER 4-4-2 C7/1 Uniflow class, LNER 4-4-2 C7/2 class.
 
	
	27 Mar 2013