Gamma Zinken 25mm Accessory Mount Ball w/28 to30mm clamps - GZ-SM2023050
Versatile 1 inch diameter ball for mounting various accessories.
Clamps to handlebar or crash bar via clamps that work with 1 1/16th (28mm) to 1 3/16th inch (30mm) diameter bar.
This works best on tapered 7/8th's diameter handlebars like those found on the V85, Tuono, Tuono 660, Caponord 1200, and Griso