3 1/2" Pivoting Bar Risers for 7/8" OR 1 1/8" HandlebarLifetime Warranty Made in the USA 3 1 2" (89mm) Center to Center Rise Pivots Backward Forward based on Rider Preference 7 8" Stem (22mm) Accepts 7 8" (22mm) OR 1 1 8" (28mm) Handlebar Always check and confirm that your machine has adequate cable and brake line length before installing handlebar risers. These risers will mount on virtually any machine that has a solid 7 8" tubular stock handlebar and open mounting area. NOT APPROVED for use on bikes