JT Motorcycle High Performance O-Ring Drive Chain Gold & Black 428 HPO 134 Split Link Yamaha WR125 R-Y,Z,A,B,D,E,F 2009 - 2015 (22B1/3). HPO High Performance O-ring Drive chain. This JT Chain is designed to fit model years Yamaha WR125 R-Y,Z,A,B,D,E,F 2009 2010 2011 2012 2013 2014 2015.