Hill Country Customs Chrome 1 1/2" Tall Handlebar Risers with one piece Top Clamp for Harley-Davidson Handlebars with 1" clamping area - HC-15RK Chrome 1 1/2" tall Handlebar Risers with a One Piece Top Clamp. Will work on any Harley-Davidson handlebar that is 1"' thick in the clamping area. Made from Billet Aluminum, these risers are polished and then chrome plated for that show appearance. Will not work on Road King or Road Glide models.