Cosa Clutches and Parts

SIP Cosa race clutch 93405200 for Vespa with CNC lightened basket, 23 tooth

Cosa clutches and parts for vintage Vespa largeframes.

The Cosa clutch came on the later PX and also works on the earlier P-Series bikes, with more friction plates than the stock clutch for a firmer grip. Here you'll find complete Cosa clutches in 21, 22 and 23 tooth, plus baskets, back plates, drive gears, plates, springs and nuts, and SIP Sport, Race and Cosa 2 upgrades for tuned engines.