A Alfa Romeo 75 4 trou (1985–1992) uses a 4x98 PCD and a centre bore of 58.6 mm.
Any wheel must match the vehicle's PCD exactly: there is no tolerance, unless you use a PCD adapter.
Centre bore: the wheel must have a centre bore of 58.6 mm or more. If it is larger (as with most aftermarket wheels), add a hub centric ring wheel centre bore → 58.6 mm.
Offset: the original is ET45. Compare your future wheel with the offset calculator (your vehicle is already selected) to see how many millimetres further in or out it will sit.
Fixings: thread M12x1.25. The nuts or bolts must have the same seat (conical, spherical or flat) as the wheel.
Tyres: original fitment is 185/70R13. For another size, check the diameter difference with the equivalence calculator (under 3 % recommended).
Will wheels from another vehicle fit your 75 4 trou?
Choose the vehicle the wheels come from: we compare the hub, then each original wheel to the millimetre.
Same PCD, different centre bore
These vehicles also use 4x98 but with a different centre bore: their wheels need a hub centric ring if their centre bore is larger than 58.6 mm, and will not fit if it is smaller.
A Alfa Romeo 75 4 trou (1985–1992) has a PCD of 4x98: 4 studs or bolts spaced around a circle 98 mm in diameter.
Does a Alfa Romeo 75 4 trou need a hub centric ring?
The centre bore (hub diameter) of a Alfa Romeo 75 4 trou is 58.6 mm. A wheel with a larger centre bore is fitted with a hub centric ring that brings it down to the hub diameter. A wheel with a smaller centre bore cannot be fitted.
What offset (ET) for a Alfa Romeo 75 4 trou?
The recorded original offset is ET45. A lower ET pushes the wheel outwards, a higher ET pulls it inwards: check wheel well and caliper clearance before making any change.
Does a value look wrong, or is a version missing? Let us know, we check every report.
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