tirewheelguide

1978 Opel Admiral tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120 on every 1978 trim.

Tires for the 1978 Opel Admiral

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

  1. 175xR14 standard on 3 trims
    Check price on Amazon · 175xR14
  2. 185/75R14 Best-rated optional on 3 trims
    Check price on Amazon · 185/75R14
  3. 195/70R14 Best-rated optional on 3 trims
    Check price on Amazon · 195/70R14

Also listed: 205/70R14

TireWheelGuide may earn a commission from purchases made through these links.

Trims sold in 1978
3
Generation
B

3 trims sold in 1978

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

Opel Admiral B

1969–1978 3 trims
Admiral 2.8 +2 variants 130 hp · 2.8L I6 175x HR14 4 fitments

Same tires and wheels on: 2.8i

Generation
B · 1969–1978
Power
130 hp
Engine
2.8L I6, Petrol
Center bore
69.1 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Check price on Amazon · 175xR14 Wheels 14x6 ET41 · 5x120 · 69.1 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
175x HR14Rim 14x6 ET41 5x120–
185/75HR14Rim 14x6 ET41 5x120–
195/70HR14Rim 14x6 ET41 5x120–
205/70HR14Rim 14x6 ET41 5x120–
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.
Trims sold in 1978
3
Generation
B
Other years
All years (1964–1978)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

Open the size calculator

Guides worth reading first

All articles
Basics

How to read a tire sidewall

Reading a tire sidewall is easy. Find out what the size, load index, speed rating and date code mean.

Continue reading
Guide

Everything you need to know about tire tread depth

Tire tread depth is an important factor in keeping your vehicle safe — how to measure it and when to replace.

Continue reading
Gear

Best supercapacitor jump starter review

We tested seven supercapacitor jump starters to find the ones worth buying.

Continue reading