XKH- Replacement of Motor Black 1''Spike Handlebar Risers 2'' for Kawasaki Vulcan 900 Classic Custom new Hole Diameter: 1" new Width: 1 3/4".Total Height: 5 1/4" Height from bottom to center of hole: 2 1/4" Bottom Thread Mount: 10mm Coarse,Bolts included: 10mm Coarse Thread 2 3/4" Length,,THIS SET IS MADE FOR 1 INCH HANDLEBARS ONLY,These are aftermarket risers and will not fit on some models,Inspect your bikes design and determine if these will fit before purcashing.,Bolts included - 10mm Coarse Thread 2 3/4" Length,Use the measurements above to determine if the risers will fit,No Installation guide Fiment:This set is made for 2.5cm (1 inch) handlebars only.All Harley Davidson ,Cruisers ,Choppers ,Metrics with 2.5cm bar diameter......