can you get different offset alloy rims. 
as my brother has a scania 2003,164 tag axle unit, & he has put the super singles off the front axle,on the tag & they seam to stick out a little,& rub on the mudguards when the axle is up,but have seen other scanias with them fitted,& look ok
Yes you can… Scania run a different offset to Volvo and Daf ,Renos anyway, most run 120 offsets with super rims and these normally have to have spatz fitted on scanias, same as the tag fit the front offset and you will be fine which is 120 +15 = ? gives you the correct offset for scaniasfront axles and mid and tag axles
Also there is to fittings on the Scania mudwings if you look at the mud guard stays there is 6 bolt holes per side if on the inner bolt holes this will move the mud guards in by a good inch or so which can also cause rubbing with super rims fitted to tag axles if on the outer bolt holes which is normally the std fitment and the tyres rub then its down to offset been incorrect,
you need 135 offsets… 
ok cheers globby 480, 
will check the mudguard stays,