Riser extension kit in polished aluminum for 7/8 "handlebars (22.2mm) Very useful for adjusting and personalizing the height of your handlebar in three steps The three spacers included in the package, in fact, allow you to raise the riser of 0,5cm / 1cm / 2cm (using the three units) The pins of the various lengths for fixing are included in the package Measurements: Distance between the fixing holes: 35mm Fixing hole diameter: 10mm