Welcome! Do you have the sport package?

Edit: If your X5 is non-sport then the OEM tires are Michelin MXV4 in 255/55/18 size. If you have SP then tires are either Michelin Diamaris or Bridgestone Turanza in staggered 255/55/19 front and 285/45/19 rears.

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Dinan S1 pkg / 22" Iforged Swift - Toyo 295F*315R / Eisenmann Race - OEM tips / H & R 15mm front
30mm rear spacers / Euro-spec headlights / CF M Competition steering wheel / Full CF interior /
6000K D2S / HID fogs / AiBrights V3 / Interior Xenon / LED sidemarkers / Matte black grille & hood vents