Cruise control for BMW motorcycles. It is attached to the wide part of the rubber throttle control handle and rests against the brake lever. To use, you need an M4 bolt to adjust the tightening. The cruise control should rotate on the grip when you want it to, but be resisted to the spring in the grip.
It's makes for BMW F800ST, but will likely fit most BMW models.
Infill 100%, ABS