1977 Isuzu Gemini tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 4x100 on every 1977 trim.

Tires for the 1977 Isuzu Gemini

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

175/70R13 Best-rated standard on 1 trim

Check price on Amazon · 175/70R13
175/65R14 Best-rated optional on 1 trim

Check price on Amazon · 175/65R14

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Trims sold in 1977: 1
Generation: I
Other years: 1974
1975
1976
1977
1978
1979
1980
1981
All years (1974–2000)

1 trim sold in 1977

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

Isuzu Gemini I

1974–1984 1 trim

Gemini All Trims N/A · N/A 175/70R13 82S 2 fitments

Generation: I · 1974–1984
Power: N/A
Engine: N/A
Center bore: 56.6 mm
Bolt pattern: 4x100
Thread: M12 x 1.5

Check price on Amazon · 175/70R13 Wheels 13x5 ET39 · 4x100 · 56.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
175/70R13 82S	Rim 13x5 ET39 ~~4x100~~	29 psi
175/65R14 82S	Rim 14x5 ET42 ~~4x100~~	29 psi

How to read 82S: 82 is the load index (up to 1,047 lb / 475 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET39 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

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.