An optical target assembly (100) to secure an optical target relative to a vehicle wheel assembly (10) consisting of a wheel rim having a circumferential lip and a tire mounted thereon for rotation about an axis, comprises: a base assembly (102) including a contact surface (110) configured for non-determined abutting placement at a plurality of contact points against an outer surface of the vehicle wheel assembly, between the circumferential lip of the wheel rim and an axial center point of the wheel rim; characterized by a target support assembly (108) removably secured to said base assembly axially outboard from said contact surface (110); and at least one attachment mechanism configured (104A, 104B, 106, 300) to maintain each of said contact points of said contact surface in contact with, and immobile relative to, said outer surface of the wheel assembly during a vehicle service procedure; and wherein said target support assembly (108) includes a first target surface (200A) and a separate second target surface (200B), with a plurality of optical target elements (202) disposed on each of said first and second target surfaces, the second target surface (200B) separately disposed axially inward from the first target surface (200A), and is offset from a plane of the first target surface (200A).