Do not send us an email or note specifying what length chain you need. You must ORDER the correct length. BUYER must check chain length needed before ordering. Any info provided by seller regarding stock length is to the best of our knowledge, but seller is NOT responsible for chain that is ordered incorrectly. Any return for different length chain will be at buyer's expense, including shipping both ways. PLEASE check BEFORE ordering. This brand new non o-ring chain sprocket kit fits the following models 2003 Kawasaki KFX400 KSF400-A 2004 Kawasaki KFX400 KSF400-A 2005 Kawasaki KFX400 KSF400-A 2006 Kawasaki KFX400 KSF400A Included is 1 520 x 96 black, non-sealed chain 1 Master link clip style 1 14 tooth front sprocket 1 40 tooth rear sprocket Tensile strength of 8200 pounds Factory Spec brand Stock gearing for this model is 14/40 with a 520x96 chain Factory Spec brand sprockets are made of hardened steel and built to last