Yana Shiki A8010B Anodized Black 4"-6" Billet Aluminum Swingarm Extension for BMW S1000RR BMW S1000RR 2010-2013 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.