Spec Sizes

Cadillac CT6 Wheel Sizes by Year

Year matrix of bolt pattern, center bore, thread, rim and tire sizes from the catalog.

YearBoltBoreThreadRimsOffsetTires
20205x12066.9M14 x 1.58x18, 8.5x19, 8.5x20, 9x21ET35, ET33, ET30235/50R18, 245/45R19, 245/40R20, 255/35R21
20195x12066.9M14 x 1.58x18, 8.5x19, 8.5x20, 9x21ET35, ET33, ET30235/50R18, 245/45R19, 245/40R20, 255/35R21
20185x12066.9M14 x 1.58x18, 8.5x19, 8.5x20, 9x21ET35, ET33, ET30235/50R18, 245/45R19, 245/40R20, 255/35R21
20175x12066.9M14 x 1.58x18, 8.5x19, 8.5x20, 9x21ET35, ET33, ET30235/50R18, 245/45R19, 245/40R20, 255/35R21
20165x12066.9M14 x 1.58x18, 8.5x19, 8.5x20, 9x21ET35, ET33, ET30235/50R18, 245/45R19, 245/40R20, 255/35R21