SUPERSPROX Stealth 520 Sprocket: OZ / BST / Marchesini /Rotobox 

Stealth sprockets are the highest quality and most technological advanced sprockets in the world. The Stealth is a combination of long lasting steel outer chain rings and lightweight aluminum centers that utilizes the best of both materials.

Fits almost all the double sided swingarm BST, OZ or Marchesini aftermarket wheels with 520 chains. Will not fit the Marchesini branded OEM wheels made by Brembo, Marchesini SuperMotard wheels and KTM RC8 Wheels made by O.Z.