Spec Sizes

2015 BMW i8 Wheel Size & Fitment Specs

Confirmed OEM mounting and wheel configurations for this model year. Multiple setups are listed separately — nothing is collapsed to a single arbitrary size.

  • Bolt pattern5x112
  • Center bore66.5 mm
  • Thread sizeM14 x 1.25
  • FastenerLug bolts

Open wheel fitment calculator → · Tire sizes →

1.5

PositionRimOffsetBackspacingTireBore
Rear7x20ET364.92"195/50R2066.5 mm
Rear7.5x20ET405.32"215/45R2066.5 mm
Rear7x20ET364.92"195/50R2066.5 mm
Rear7.5x20ET405.32"215/45R2066.5 mm

Staggered / rear-specific sizes are listed separately from front.

1.5 (DLA-2Z15)

PositionRimOffsetBackspacingTireBore
Rear7x20ET364.92"195/50R2066.5 mm
Rear7.5x20ET405.32"215/45R2066.5 mm

Staggered / rear-specific sizes are listed separately from front.

Vehicles with potentially interchangeable wheels

Filtered by exact bolt pattern and physically compatible center bore — not a full fitment guarantee.

Hardware matching known specs

  • MCGARD Wheel Locks M14x1.25

    Thread matches catalog hardware

    M14 x 1.25 · lock

    View on Amazon

  • Rison Titanium Open End Lug Nuts (M14x1.25, Burnt Blue)

    Thread matches catalog hardware

    M14 x 1.25

    View on Amazon