Features Compatible with motorcycle handlebar mount PRO Contents 1x spacer for handlebars with a diameter of 22.2 mm (7/8 inch) 1x spacer for handlebars with a diameter of 25.4 mm (1 inch) 1x spacer for handlebars with a diameter of 28.6 mm (1-1/8 inch) 1x spacer for handlebars with a diameter of 31.8 mm (1-¼")