AXP Racing Rear Swing Arm Protection HDPE (6mm Thick) for Yamaha YFZ450 2003 2010 Options:Black EXC Racing 2000 2005 400 Options:C AM (ESR540) EXC Racing 2000 2005 400 LC4 enduro 1993 1996 400 M4 Motard (Street version) 2007 2009 400 RR 2005 2009 400 RR 2010 2012 400 RR 4T 2013 2016 400 SX 1999 2002 440 SX 1994 1994 450 EXC R 2016 2016 450 EXC Racing 2003 2011 450 EXC Racing & 450 XC G Racing 2007 2012 450 EXC F 2017 2023 450 EXC F 2013 2015 450 EXC F 2016 2016 450 EXC F Factory Edition 2010 2011 450 EXC F Dual density PU foam is anatomically positioned to hold the ankle securely in place Limits damage in case of contact from the rear 30 to 40% lighter than its equivalent in aluminum