Clutch 21Z (67/68) -BGM PRO Superstrong 2.0 Touring STD Ultralube - lining type Cosa2 (steel/cork)- 21 teeth for primary wheel 67/68Z - Vespa PX80, PX125, PX150, T5 125cc, Cosa, Sprint150, Rally180, GT125/GTR125, TS125, GL150, Super125 (VNC1 from no. 1100