Puig Aluminum Universal Bar End Caps
Sold as a pair.
These bar end caps are the universal type and use an expanding rubber grommet to provide grip. Designed to be used with hollow 7/8ths bars
For Moto Guzzi:
Installation is simple: Remove stock bar weight, unscrew stock bar weight receptacle, insert bar end cap. Tighten bar end weight by hand until the weight can not be pulled out of the bar.