I'm in the process of restoring a 1976 car. I had the tyres taken off the rims this morning in readiness for getting the rims powder coated and I have discovered that spread across 5 wheels I have four different sizes!
All five are steel, painted silver with FIAT pressed into the centre boss.
To start with the pair that match, they are 125 mm wide and 333 mm diameter.
I have one that is 108 mm wide, 333 mm diameter with the centre boss proud of the rim edge.
I have one that is 120 mm wide by 333 mm diameter, the outer face of the rim has a curved edge and the bolt holes have a raised surround.
I have one that is 120 mm wide by 333 diameter.
Can anyone tell me what size should be on the car and does anyone have any wheels they would sell or swap so that I can end up with two pairs or indeed better still four the same?
Cheers.
Hi Mike,
The wheel width needs to be measured from the inside faces and it's best referred to in old money. Wheel sizes are driven by the tyre size which tends to confuse things.
If you measured the outside rim then the 108mm is 3.5"
125mm is 4"
I'm not sure about the 120mm!
The wheel diameter will be 12" if its an early aircooled.
I think you might have one 3.5" rim from a 500r
2x 4" from the 126. The bolt and rim details are curious and I guess the wheel was changed at some point during production.
I may be wrong so please jump in if anyone else knows.
I have one 4" rim I can sell you if it helps.
The 3.5" rim will be good as a spare as it will fit in the front panel better.