2008 Chevrolet Cobalt Wheel Backspacing

5.40 in · 4.65 in · 5.15 in

Quick specs

Backspacing
5.40 in · 4.65 in · 5.15 in
OEM offset
ET42
Wheel size
7.5x18 · 6x15 · 6x16 · 7x17
Bolt pattern
4×100, 5×110
Tire size
225/40R18 · 195/60R15 · 205/55R16 · 205/50R17

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
2.0 SS · I4, Petrol7.5x18ET425.40 in225/40R185x11065.1 mmM12 x 1.5
2.2 · I4, Petrol6x15ET424.65 in195/60R154x10057.1 mmM12 x 1.5
2.2 · I4, Petrol6x16ET424.65 in205/55R164x10057.1 mmM12 x 1.5
2.2 LT2/LT3 · I4, Petrol6x167x17ET424.65 in205/55R16 / 205/50R175x11065.1 mmM12 x 1.5
2.4 SS · I4, Petrol7x177x17ET425.15 in205/50R175x11065.1 mmM12 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 2008 Chevrolet Cobalt

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.