1" Handlebars - These high grade steel handlebars are 1" at clamp area and at control area, where you fit your levers and bar grips etc. 1" Steel handlebars as fitted to most street bikes and normally found on Harley Davidson and some of the large Jap bikes such as Honda. We do not have information and so cannot advise on which bars are suitable for which bike, so please check dimensions and description before you order.