Our Honda CBR 600 RR Swingarm Extensions are the highest quality billet aluminum Bolt On Honda CBR 600rr Swingarm Extensions available at any price. Large 3/8 stainless steel fasteners are included eliminating rusting and bending.These Honda CBR 600 RR Swingarm Extensions stretch you motorcycle swingarm from 4 to 9 inches and requires a longer chain and brake line (both sold separately).Proudly Made in our Hendersonville, Tennessee U.S.A. facility.