1980 Triumph TR8 tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 1980 Triumph TR8.

1980 Triumph TR8 tire sizes

Bolt pattern

Other years

Fitment tables

Open a trim for its factory package and every alternative size, front and rear.

1978 – 1981 2 trims

135 hp · 3.5 L V8 Petrol 3.5 L V8 185/70 HR13 5 fitments

GenerationTR8 1978–1981

MarketUSA

Power135 hp

Engine3.5 L V8 Petrol 3.5 L V8, Petrol

Center bore57.1 mm

PCD4x95.25

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	185/70 HR13	13x5.5 ET25 ~~4x95.25~~	28	Tires Rims
Alt	185/65 HR14	14x5.5 ET25 ~~4x95.25~~	29	Tires Rims
Alt	185/65 HR14	14x6 ET25 ~~4x95.25~~	26 F / 29 R	Tires Rims
Alt	195/55 HR15	15x6 ET25 ~~4x95.25~~	29	Tires Rims
Alt	205/50 VR15	15x6.5 ET20 ~~4x95.25~~	29	Tires Rims

148 hp · 3.5 L V8 Petrol 3.5 L V8 185/70 HR13 5 fitments

GenerationTR8 1978–1981

MarketUSA

Power148 hp

Engine3.5 L V8 Petrol 3.5 L V8, Petrol

Center bore57.1 mm

PCD4x95.25

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	185/70 HR13	13x5.5 ET25 ~~4x95.25~~	28	Tires Rims
Alt	185/65 HR14	14x5.5 ET25 ~~4x95.25~~	29	Tires Rims
Alt	185/65 HR14	14x6 ET25 ~~4x95.25~~	26 F / 29 R	Tires Rims
Alt	195/55 HR15	15x6 ET25 ~~4x95.25~~	29	Tires Rims
Alt	205/50 VR15	15x6.5 ET20 ~~4x95.25~~	29	Tires Rims

Reading the table

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
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.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.