Diameter 0.5 inch (13 mm) Shim 3 Pieces Each 1.85mm-3.20mm/0.05mm Knurled 00 Kawasaki ZR-7 92-95 Kawasaki ZR 1100 Zephyr 91-93 Kawasaki ZR 750 Zephyr 90-93 Kawasaki ZR 550 B Zephyr