Original Vespa Lock Ring - Sprint / GTS / Elettrica / 946 - 22 x 10.3 x 2.5mm - 178790

In order to properly tighten the bolt that attaches the swingarm / subframe to the engine, this plate must be used.

Thick and strong enough to properly tighten the bolt without digging into the swingarm material.

Original parts…give you a good feeling!