2021 Porsche 911 Wheel Backspacing

6.30 in · 6.22 in · 6.34 in · 6.11 in · 6.56 in

Quick specs

Backspacing
6.30 in · 6.22 in · 6.34 in · 6.11 in · 6.56 in
Wheel size
8.5x19 · 8.5x20 · 9x20 · 9.5x20
Bolt pattern
5×130
Tire size
235/40R19 · 245/35R20 · 255/35R20

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
3.0 Carrera · 3.0L, F6, Petrol8.5x198.5x19ET526.30 in235/40R195x13071.6 mmM14 x 1.5
3.0 Carrera 4 · 3.0L, F6, Petrol8.5x198.5x19ET526.30 in235/40R195x13071.6 mmM14 x 1.5
3.0 Carrera 4 GTS · 3.0L, F6, Petrol8.5x208.5x20ET506.22 in245/35R205x13071.6 mmM14 x 1.5
3.0 Carrera 4S · 3.0L, F6, Petrol8.5x208.5x20ET536.34 in245/35R205x13071.6 mmM14 x 1.5
3.0 Carrera GTS · 3.0L, F6, Petrol8.5x208.5x20ET506.22 in245/35R205x13071.6 mmM14 x 1.5
3.0 Carrera S · 3.0L, F6, Petrol8.5x208.5x20ET536.34 in245/35R205x13071.6 mmM14 x 1.5
3.0 Targa 4 · 3.0L, F6, Petrol8.5x198.5x19ET526.30 in235/40R195x13071.6 mmM14 x 1.5
3.0 Targa 4 GTS · 3.0L, F6, Petrol8.5x208.5x20ET506.22 in245/35R205x13071.6 mmM14 x 1.5
3.0 Targa 4S · 3.0L, F6, Petrol8.5x208.5x20ET536.34 in245/35R205x13071.6 mmM14 x 1.5
3.7 Turbo · 3.7L, F6, Petrol9x209x20ET416.11 in255/35R205x13071.6 mmM14 x 1.5
3.7 Turbo S · 3.7L, F6, Petrol9x209x20ET416.11 in255/35R205x13071.6 mmM14 x 1.5
4.0 GT3 · 4.0L, F6, Petrol9.5x209.5x20ET466.56 in255/35R205x13071.6 mmM14 x 1.5

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 2021 Porsche 911

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.