Vortex Racing Rear Sprockets - 420 (40-54 tooth)

Made with the highest quality 7075 T6 aluminum. The 420 pitch size is made for mini bikes (pit bikes), such as the Honda Grom and XR50/CRF50 and Kawasaki Z 125.

34 tooth is the stock size for the Honda Grom rear sprocket. 

Color options include silver, black, red, and blue.

Available for:

  • Honda - Grom MSX125 (MSX 125)
  • Honda - XR50/CRF50
  • Kawasaki - Z125 Pro (Z 125)


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