A rim is universaly identifiable if you know:
- raw material (steel,alloy, etc.)
- surface treatments (painting, chrome plating, anodize etc..)
- section type (UNI, AS, FS, WO, MT, WM..)
- section (in inches)
- diameter (in inches)
- number, position, diameter of holes and bulges
- punching characteristics (English/ Italian)
- punching degrees (based on wheel hub)
- valve hole
- hub sort and size
- offset