The BBS assembly consists of 4 BBS parts including a twist nut lock part ring, plate, center cap clip, and hex nut.
A. Twist nut lock ring

• Outer Diameter: 90mm(3 17/32in)

• Inner Diameter: 68mm(2 21/32in)

• Wheel cover height: 20mm(25/32in)

• Clamp length: 5mm(3/16in)

• Number of clips: 3

Part Number:

09.23.133

Suitable car model：

BBS RZ RG 15″ 16″

BMW E30/E39
B. Plate

• Outer Diameter: 162mm(6 3/8in)

• Inner Diameter: 90mm(3 17/32in)

• Wheel cover height: 12mm(15/32in)

Part Number:

09.24.187/23.422

Suitable car model：

BBS RZ RG 15″ 16″

BMW E30/E39

C. nylon ring

• Outer Diameter: 96mm(3 3/4in)

• Inner Diameter: 70mm(2 3/4in)

• Wheel cover height: 11mm(13/32in)

• Clamp length: 10mm(3/8in)

• Number of clips: 3

Part Number:

09.23.132

Suitable car model：

BBS RZ RG 15″ 16″

BMW E30/E39

D. hex nut

• Outer Diameter: 102mm（4in）

• Inner Diameter(The internal diameter does not represent the clamp diameter): 71.7mm(2 13/16in)
•Clamp installation diameter: 68.5mm(2 11/16in)

• Wheel cover height: 20mm(25/32in)

Part Number:

09.23.131

09.24.152
Suitable car model：

BBS RZ RG 15″ 16″

BMW E30/E39