Aluminum Spools Aluminum Spools Click Here Nylon Spools Nylon Spools Click Here Swing Arm Spools Swing Arm Spools Click Here Aluminum Spools Available in 6mm, 8mm, and 10mm bolt sizes. Black and Silver anodized colors Wide center groove Light weight billet aluminum Shop Now Nylon Spools Nylon spools in 6, 8, and 10 mm sizes. All are satin black in color. Designed to reduce swing arm damage in the event of a fall. Overall size of these nylon “slider” spools is slightly larger than our billet aluminum spools. Shop Now Share this:TwitterFacebook