Rear Sprocket 520 Size 45T Gold YZ125/YZ250/YZ426/YZ450F/WR250R/WR250X/WR250/WR400F

[TALON TR339R/L Rear Sprocket, 520 Size, 45T, Gold, YZ125/YZ250/YZ426/YZ450F/WR250R/WR250X/WR250/WR400F, WESTWOOD] ・Uses 7075 T6 aluminum, known for its lightness and rigidity, also used in aircraft. ・Designed and developed to reduce unsprung weight, thereby smoothing the action of the rear shock and improving the overall balance of the machine. It also features a self-cleaning grooved design to reduce resistance caused by mud and gravel between the chain and the sprocket. ・It is recommended to replace the chain and sprockets simultaneously! If the chain is stretched, replacing only the sprocket will cause the new sprocket to wear unevenly to match the stretched chain's link spacing. This will not only prevent it from performing as intended but also shorten its replacement cycle. Compatible models/years: YAMAHA YZ125/'99-'09, YZ250/'99-'09, YZ426/'99-'09, YZ450F/'99-'09, WR250R/'08-'09, WR250X/'08-'09, WR250/'99-'07, WR400F/'99-'07. Type: Rear Size: 520 Number of teeth: 45 Color: Gold *Images are for illustration purposes only. The design and specifications of the products shown may change without prior notice. Thank you for your understanding.