The risers are placed between the fork crown and the handlebars to raise the bars up 1 1/4" (32mm) and back 3/4" (19mm). This will help to relieve wrist and neck pain on long rides. Requires no change of any control cables, wiring, or hoses.Note: Fits Triumph Bonnevilles with 1" handlebars. (Some Bonnevilles have 7/8" bars.) Also fits America, Speedmaster, Thunderbird and Rocket III.