I'm looking for larger grooved tyres for a Britains rotorspreader. I tried to combine Ford 5610/tw20 centres with 90-90 fronts, which worked, but wobble when fitted to the spreader. Ideally the centre holes would be the same diameter as the original impliment centres.
Size-wise, slightly smaller than the Fiat's, but perhaps larger & wider than Unimog/vintage spreader would look like those I used to see on Marshall spreaders.
MF 362 rears look about right but are they smaller than 90-90 fronts?
I'm new to conversions so don't know all of what fits what, maybe siku tyres would be a better bet?