RED NON-O RING CHAIN AND SPROCKET KIT FITS THE FOLLOWING MODELS 2010-2013 YAMAHA YZ450 F BRAND NEW RED NON-O RING CHAIN AND SPROCKET KIT INCLUDES THE FOLLOWING ITEMS 1- 14T FRONT SPROCKET 1- 49T REAR SPROCKET 1- 520-116L RED NON-O RING CHAIN DEPENDING ON WHAT GEAR RATIO YOU ARE BUYING AND IF IT IS STOCK OR NOT YOU MAY NEED TO REMOVE LINKS FROM THE CHAIN, PLEASE VIEW YOUR OWNERS MANUAL TO ENSURE THE CORRECT LENGTH AND PROPER ADJUSTMENT CHAIN HAS A AVERAGE TENSILE STRENGTH OF 7600 LBS |