Quick view Supersprox Stealth Edge Black Rear Sprocket | Pitch: 520 | Teeth: 42 | RSA-733_525:42-BLK MSRP: £83.41 Perfect for long life, with added style Unique tooth design increases sprocket life up to 6% compared to similar designs Steel teeth for longer system life; aluminum core for reduced rotational mass 30% lighter than the OEM part Add to Wish List Add to My Wish List Create New Wish List