It's kind of impossible to see the images. The bars are 7/8th on the RC. There are bars that come in 1"--lots of Harleys are one inch Just make sure that the throttle you select is 7/8ths. Domino is the major supplier for many throttles. They make great products, but not all of them are top of the line. But if you do select one of their top of the line throttles you'll probably love it.