[Dominik]

MUZ,

"Cobra wheels have 3.1/2'' backspace I am told.?"

I took some measurements from the TRIGO set. I never really got used to "backspacing" or "offset":

25.4 mm = 1"

front nominal width 7.5"
total width: 214 mm
wheel mounting face towards brakes: 92 mm
center section thickness: 67 mm
take wing nut off and measure to outside: 55 mm
wheel mounting face to outside (towards fender): 122 mm

rear nominal width 9.5"
total width: 264 mm
wheel mounting face towards brakes: 92 mm
center section thickness: 67 mm
take wing nut off and measure to outside: 105 mm
wheel mounting face to outside (towards fender): 172 mm

may not be easy to understand what I mean, lacking the proper terminology, but the last values represent the space you need from hub to fender - PLUS tire shoulder!

The rims rested on the boxes they came with, when I read the values. So they are not 100% correct but 97%...

Dom

took me 3:35min to open CC copy my reply and go home...