YAMAHA YZ 125 250 1997-2007 YZ WR 250 426 450 F 1998-2006 AS3 CHAIN GUIDE BLOCKS year-1985 2014-2016 BMW S1000 R

2014-2016 BMW S1000 R

2004-2023 Yamaha YZ 250 F

2004-2006 Suzuki RMZ 250

high pressure race conditions

1995-2008 Suzuki RM 250

YAMAHA YZ 125 250 1997-2007 YZ WR 250 426 450 F 1998-2006 AS3 CHAIN GUIDE BLOCKS year-1985 2014-2016 BMW S1000 RReplacement blocks to fit AS3 Performance chain guides, made from black hard plastic the blocks are a direct replacement part to fit AS3 Performance chain guides. Please note these blocks are designed for AS3 Performance aluminium chain guides only and will not fit OEM chain guides. Will Fit 1997 2007 Yamaha YZ 125 1997 2007 Yamaha YZ 250 2001 2006 Yamaha YZ 250 F 1998 1999 Yamaha YZ 400 F 2000 2002 Yamaha YZ 426 F 2006 2006 Yamaha YZ 450 F 2001 2006