Description: 100% Brand New 20mm Front Sprocket Clip Holder Retainer Washer Use for 420 428 520 chains Fits for Pit Pro Trail Dirt Quad Bike Atv Dune Buggy Diameter of Centre Hole: approx. 20mm/0.79'' Distance Between Mount Hole(centre to centre): approx. 34mm/1.34'' Total length: approx. 47mm/1.85'' Small hole diameter: approx. 6mm/0.24'' Material: Metal Package Includes: 1 Piece Front Sprocket Retainer Clip Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement