2018 Mazda Roadster RF 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 2018 Mazda Roadster RF.

2018 Mazda Roadster RF tire sizes

Bolt pattern

Other years

Fitment tables

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

2016 – 2023 Japan market 2 trims

181 hp · 2.0L PE-VPR I4 205/40 R18 83W / 225/35 R18 85W 3 fitments

GenerationND 2016–2023

Power181 hp

Engine2.0L PE-VPR I4, Petrol

Center bore54.1 mm

PCD4x100

ThreadM12 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
Front205/40 R18 83W	18x7 ET45 ~~4x100~~	29	Tires Rims
Rear225/35 R18 85W	18x8 ET45 ~~4x100~~	29	Tires Rims
205/45 R17 84W	17x7 ET45 ~~4x100~~	29	Tires Rims
195/50 R16 84V	16x7 ET45 ~~4x100~~	29	Tires Rims

156 hp · 2.0L PE-VPR I4 205/40 R18 83W / 225/35 R18 85W 3 fitments

GenerationND 2016–2023

Power156 hp

Engine2.0L PE-VPR I4, Petrol

Center bore54.1 mm

PCD4x100

ThreadM12 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
Front205/40 R18 83W	18x7 ET45 ~~4x100~~	29	Tires Rims
Rear225/35 R18 85W	18x8 ET45 ~~4x100~~	29	Tires Rims
205/45 R17 84W	17x7 ET45 ~~4x100~~	29	Tires Rims
195/50 R16 84V	16x7 ET45 ~~4x100~~	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.