ProX Swingarm Linkage Bearing kit KX250/450F'06-17 ProX Swingarm Linkage Bearing kit KX250/450F'06-17 Make Model Begin year End Year Kawasaki KX 250 F 2006 2017 Kawasaki KX 450 F 2006 2017 Kawasaki KLX 450 R 2008 2019.