IMS 117327N2 Natural Large Fuel Tank - 3.1 Gallon Capacity Fits: Yamaha YZ250F 06-09, YZ450F 06-09, WR250F 07-10, WR450F 07-10 IMS tanks are larger capacity than stock, yet very slim and sleek IMS fuel tanks are designed to enhance the appearance of your motorcycle, yet provide greater riding distance per full tank Made with polyethylene crosslink for extra strength and durability Requires 2006 - 2009 YZF shrouds