Performance Sportster – Handlebar risers 2021-01-20 Projects Designed and modeled in CAD. Height: 45mm (3/4″).Diameter: 28.6 (1-1/8″). Mounting: 1/2-13 UNC. CNC machined in house from billet EN AW-6082 aluminium. handlebar_risers sportster Older Post Performance Sportster – Fork guards Newer Post Performance Sportster – Headlight bracket