Bars are constructed from 9/16'' solid steel with 1/4''-20 threadsEasy, bolt-on design - no drilling requiredBars are measured from first bend on leg to the top of the barBars and side plates are sold separatelyIncludes hardwareMade in the USASissy Bars do not accept luggage rack.'90-'93 XL will require longer turn signal stalks when reinstalling stock turn signals use part # DS-264005.