1981 Honda Acty tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 4x120 on every 1981 trim.

Tires for the 1981 Honda Acty

Sizes most trims come with first. Open your trim below for its exact size.

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Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

1977–1988 2 trims

Acty EH 545 (M-VD) 28 hp · I2 125x R10 2 fitments

Check price on Amazon · 125xR10 Wheels 10x3.5 ET40 · 4x120 · 67.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
125x R10	Rim 10x3.5 ET40 4x120	–
125x R10	Rim 10x3.5 ET40 4x120	–

Acty EH 545 (M-VH) 28 hp · I2 125x R12 2 fitments

Check price on Amazon · 125xR12 Wheels 12x4 ET40 · 4x120 · 67.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
125x R12	Rim 12x4 ET40 4x120	–
145/80R12 72N	Rim 12x4 ET40 4x120	–

What these columns mean

Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.