Vortex 435S-42 Steel Rear Sprocket 520 Ninja 250R 300 500 500R R1 R6 FZ6 FZ1

Vortex Steel 520 Rear Sprocket Black 435S-42 42T 57-3715 1210-0537 3-435S42

Vortex Racing Steel Rear Sprocket 520 42 Tooth for Powersports - Black

Vortex Racing Steel Rear Sprocket 520 42 Tooth - Black

Vortex 435S-42 Steel Rear Sprocket 520 Ninja 250R 300 500 500R R1 R6 FZ6 FZ1

Vortex Racing Steel Rear Sprocket 520 37 Tooth - Black for Powersports

Vortex Racing Steel Rear Sprocket 520 40 Tooth for Powersports - Black

Vortex Steel Rear Sprocket 42T 520 Black #435S-42 for Yamaha/Kawasaki/Suzuki