2020 Subaru WRX Wheel Backspacing

6.17 in · 6.42 in · 6.27 in · 5.92 in

Quick specs

Backspacing
6.17 in · 6.42 in · 6.27 in · 5.92 in
OEM offset
ET55 · ET45
Wheel size
8x17 · 8.5x18 · 8.5x19 · 9x19 · 7.5x20
Bolt pattern
5×114.3
Tire size
Multiple — see configurations

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
2.0T · 2.0L, FA20, H4, Petrol8x178.5x19ET556.17 in235/45R17 / 245/35R195x114.356.1 mmM12 x 1.25
2.0T · 2.0L, FA20, H4, Petrol8.5x188.5x19ET556.42 in245/40R18 / 245/35R195x114.356.1 mmM12 x 1.25
2.0T · 2.0L, FA20, H4, Petrol8.5x188.5x19ET556.42 in245/40R18 / 245/35R195x114.356.1 mmM12 x 1.25
2.0T · 2.0L, FA20, H4, Petrol9x19ET456.27 in265/30R195x114.356.1 mmM12 x 1.25
2.0T · 2.0L, FA20, H4, Petrol7.5x20ET555.92 in235/25R205x114.356.1 mmM12 x 1.25

Compare wheel position See wheel offset

Backspacing values above are calculated from OEM wheel width and offset using BS = width/2 + offset_mm/25.4 (same formula as the fitment calculator).

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More specs for the 2020 Subaru WRX

Backspacing on these pages is calculated from OEM wheel width and offset (width/2 + offset_mm/25.4). Higher backspacing seats the wheel farther inward; lower backspacing moves it outward.