Yana Shiki A3087LRC 4"-6" Billet Swingarm Extension for Kawasaki ZX-10 R Kawasaki ZX1000 Ninja ZX-10R 2006-2007 Our bolton swingarm extensions are an easy bolt on & made of billet aluminum. Available in Silver, Black or Chrome Adjustments vary by model but range from 4"10" Brake hanger included if required An extended brake line & chain are required to complete installation. all sold separate.