Vortex 40 tooth 428 Rear Sprocket, Black for RM85 YZ85


Black Vortex 40-tooth black aluminum sprocket for road racing a RM85 or YZ85. 505ZK-40

2 in stock (can be backordered)


Fits RM85 and YZ85

-Inproves performace by reducing the drive system’s rotating mass
-Lightweight 7075 T6 aerospace aluminum
-High tensile carbon steel
-Precision CNC machined individually for tightest tolerances
-Ideal Toothe Design TM for perfected chain hold and release
-Maximum Wear Resistence

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