HIGHSIDER ENTERPRISE-EP1 handlebar counterweights, black with silver insert Universal fit for 12-22mm inner diameter handlebars, therefore compatible with most 7/8 inch and 1 inch aluminum or steel handlebars. All HIGHSIDER and SHIN YO suspension bar end mirrors can be fixed with these counterweights. Dimensions: Counterweight diameter: Ø 34.5 mm Counterweight width: 14.5 mm Mirror holder diameter: Ø 29.80 mm Mirror holder width: 12 mm Please check the measurements before purchasing! Delivery contents: 2 counterweights 2 clamping sleeves each with D. 12 mm and D. 16 mm 2 spacer sleeves each with D. 14 mm, D. 18 mm and D. 21 mm 2 central screws M6 2 conical nuts M6 Note: the counterweights can also be used without a bar end mirror and can be adapted to the look of your bike using one of the 4 different matching color rings. - Black color ring art.205103 - Silver color ring art.205104 - Red color ring art.205105 - Gold color ring art.205106