THERE IS NO INNER SPRING WITH THESE BIKES SO GETTING 2 OF THESE SPRINGS IS ALL YOU NEED FOR ONE BIKE FITS THESE BIKES 1988 Honda Dirt Bike Z50R 1988 Honda Dirt Bike ZB50 1989 Honda Dirt Bike Z50R 1991 Honda Dirt Bike Z50R 1992 Honda Dirt Bike Z50R 1993 Honda Dirt Bike Z50R 1994 Honda Dirt Bike Z50R 1995 Honda Dirt Bike Z50R 1996 Honda Dirt Bike Z50R 1997 Honda Dirt Bike XR70R 1997 Honda Dirt Bike Z50R 1998 Honda Dirt Bike XR70R 1998 Honda Dirt Bike Z50R 1999 Honda Dirt Bike XR70R 1999 Honda Dirt Bike Z50R 2000 Honda Dirt Bike XR50R 2000 Honda Dirt Bike XR70R 2001 Honda Dirt Bike XR50R 2001 Honda Dirt Bike XR70R 2002 Honda Dirt Bike XR50R 2002 Honda Dirt Bike XR70R 2003 Honda Dirt Bike XR50R 2003 Honda Dirt Bike XR70R 2004 Honda Dirt Bike CRF50F 2004 Honda Dirt Bike CRF70F 2005 Honda Dirt Bike CRF50F 2005 Honda Dirt Bike CRF70F 2006 Honda Dirt Bike CRF50F 2006 Honda Dirt Bike CRF70F 2007 Honda Dirt Bike CRF50F 2007 Honda Dirt Bike CRF70F 2008 Honda Dirt Bike CRF50F 2008 Honda Dirt Bike CRF70F 2009 Honda Dirt Bike CRF50F 2009 Honda Dirt Bike CRF70F 2011 Honda Dirt Bike CRF70F 2012 Honda Dirt Bike CRF50F 2013 Honda Dirt Bike CRF50F 313P