1991 Mazda 121 tire and wheel sizes, bolt pattern and tire pressure

Bolt patterns 4x100 or 4x114.3, depending on the market version.

Tires for the 1991 Mazda 121

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

145xR12 standard on 2 trims

Check price on Amazon · 145xR12
145xR13 standard on 2 trims

Check price on Amazon · 145xR13
165/70R13 Best-rated standard on 1 trim · optional on 2

Check price on Amazon · 165/70R13

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Trims sold in 1991: 5
Generations: DB DA
Other years: 1988
1989
1990
1991
1992
1993
1994
1995
All years (1988–2002)

5 trims sold in 1991

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Mazda 121 DB

1991–1998 3 trims

121 1.1 +1 variant 54 hp · I4 145x R13 75S 2 fitments

Same tires and wheels on: 1.3

Generation: DB · 1991–1998
Power: 54 hp
Engine: I4, Petrol
Center bore: 54.1 mm
Bolt pattern: 4x100
Thread: M12 x 1.5

Check price on Amazon · 145xR13 Wheels 13x4 ET43 · 4x100 · 54.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
145x R13 75S	Rim 13x4 ET43 ~~4x100~~	29 psi
165/70R13 77S	Rim 13x4.5 ET45 ~~4x100~~	29 psi

How to read 75S: 75 is the load index (up to 853 lb / 387 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET43 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

121 1.5 87 hp · I4 165/70R13 77S 2 fitments

Generation: DB · 1991–1998
Power: 87 hp
Engine: I4, Petrol
Center bore: 54.1 mm
Bolt pattern: 4x100
Thread: M12 x 1.5

Check price on Amazon · 165/70R13 Wheels 13x4.5 ET45 · 4x100 · 54.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
165/70R13 77S	Rim 13x4.5 ET45 ~~4x100~~	29 psi
175/60R14 75S	Rim 14x5 ET42 ~~4x100~~	29 psi

How to read 77S: 77 is the load index (up to 908 lb / 412 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET45 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Mazda 121 DA

1988–1991 2 trims

121 1.1 +1 variant 52 hp · I4 145x R12 72S 1 fitment

Same tires and wheels on: 1.3

Generation: DA · 1988–1991
Power: 52 hp
Engine: I4, Petrol
Center bore: 59.6 mm
Bolt pattern: 4x114.3
Thread: M12 x 1.5

Check price on Amazon · 145xR12 Wheels 12x4 ET43 · 4x114.3 · 59.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
145x R12 72S	Rim 12x4 ET43 ~~4x114.3~~	29 psi

How to read 72S: 72 is the load index (up to 783 lb / 355 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET43 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.