Rear Sprocket 520 Size 50T Blue YZ125/YZ250/YZ426/YZ450F/WR250R/WR250X/WR250/WR400F

[TALON TR339R/L Rear Sprocket, 520 size, 50T, Blue, for YZ125/YZ250/YZ426/YZ450F/WR250R/WR250X/WR250/WR400F, WESTWOOD] ・Made from 7075 T6 aluminum, known for its use in aircraft, which offers both lightness and superior rigidity. ・Designed and developed to reduce unsprung weight, thereby smoothing the action of the rear shock and improving the machine's overall balance. It also features self-cleaning grooved machining to reduce resistance caused by mud or gravel between the chain and sprocket. ・It is recommended to replace the chain and sprockets as a set of three! If the chain is stretched, simply replacing the sprocket alone will cause the new sprocket to wear unevenly to match the stretched chain's link spacing. This will not only prevent it from performing to its full potential but will also ultimately 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: 50 Color: Blue *The image is for illustration purposes only. The design and specifications of the product shown may change without prior notice. Thank you for your understanding.