【Applicable Models】: Replacement for Yamaha YZ250 1999-2025 YZ250X 2016-2025 YFZ450 2004-2013 WR450F YZ450F 2003-2006 WR250F 1999-2000. Please Refer the Product Description. 【Applicable Models】: Replacement for Yamaha YZF-R3 2015-2024 MT-03 MTN320-A 2016-2024 YZ400F 1998-1999 WR400F 1998-2001 YZ426F 2000-2002 WR426F 2001-2002. Please Refer the Product Description. 【High Quality Material】: The Engine Sprocket is Made of 20 MnCrTi Forged carburized Steel, which has High Strength, High Hardness, Wear Resistance, High Temperature Resistance, Corrosion Resistance, and is very Suitable for Making Sprocket for Installation on Machines 【Product Specifications】: Front Engine Fixed Small Sprocket with 13 Internal Teeth and 520-14 External Teeth. The Installation Size is 21.7*25mm. 【Packaging List】: A 520 14T 6mm Front Engine Sprocket. Brand: YIPEDISC Product Model: Front Engine Sprocket Product Model Number: 520-14T Product Material: 20 MnCrTi Forged Carburized Steel Product Thickness: 6mm Product Package Size: 10*10*2cm Product Weight: 120g Applicable Vehicles: Compatible with Yamaha Off Road Fit for WR250F 1999-2000 Fit for YZ250 1999-2010 Fit for YZ250 2011-2025 Fit for YZ250 N2ME Monster 2022 Fit for YZ250 RSE 50th Anniversary Edition 2024 Fit for YZ250X 2016-2025 Fit for YZ400F 1998-1999 Fit for WR400F 1998-2001 Fit for YZ426F 2000-2002 Fit for WR426F 2001-2002 Fit for WR450F 2003-2006 Fit for YZ450F 2003-2006 Compatible with Yamaha Road Fit for MT-03 (MTN320-A) 2016-2021 Fit for MT-03 (MTN320-A) BEV 2022-2024 Fit for YZF-R3 2015-2020 Fit for YZF-R3 (YZF320-A) 2021-2023 Fit for YZF-R3 (YZF320-A) B2X 2024 Compatible with Yamaha ATV Fit for YFZ450 2004-2013 Fit for YFZ450 BB Bill Ball-ance Edition 2007 Fit for YFZ450SE Special Edition 2007-2008 Tips: Item only fits specific models listed. Please check the item description to make sure the part fits your model.