Aftermarket 2 piece chain guide blocks, available for late model MX bikes. Silver. ACG1025S = Honda CR 125 R 1995-04; CR 250 R 1986-04; CR 500 R 1986-01; CRF 250 R 2004; CRF 250 X 2004; CRF 450 R 2002-04 ACG1022S = Kawasaki KX 250 F 2009-16; KX 450 F 2009-16 ACG1032S = Kawasaki KX 125 1997-05; KX 250 F 2004-08; KLX 450 F 2006-08; KLX 450 R 2008-09; Suzuki RMZ 250 2004-06 ACG1033S = Suzuki RM 125 1999-07; RM 250 1999-08; RMX 450 2009-15; RMZ 250 2007-16; RMZ 450 2005-16; DRZ 400 E/S 2000-07; Yamaha YZ 125 1997-07; YZ 250 F 2001-06; YZ 250 1996-07; YZ 400 F 1998-00; YZ 450 F 2003-06; YZ 426 F 2000-02; WR 250 F 1998-06; WR 450 F 2003-06; WR 426 F 2001-02 ACG1021S = Yamaha YZ 125 2008-16; YZ 250 FX 2015-16; YZ 250 F 2007-18; YZ 250 2008-16; WR 250 F 2007-23; WR 450 F 2007-24; YZ 450 FX 2016; YZ 450 F 2007-22 Fits: Suzuki DRZ400E 2000-2007 DRZ400S 2006-2007 RM125 1999-2000 RM250 1999-2000 RMX450Z 2009-2015 Yamaha WR250F 2001-2006 WR426F 2001-2002 WR450F 2003-2006 YZ125 1997-2007 YZ250 1996-2007 YZ250F 2001-2006 YZ400F 1998-1999 YZ426F 2000-2002 YZ450F 2003-2006