Vortex Racing Complete Sprocket Kit - 420 pitch
Made with the highest quality 7075 T6 aluminum.
Color options for the rear sprocket include silver, black, red, and blue.
Available for Honda Grom MSX125 (MSX 125). This same sprocket kit also fits on the Honda Monkey!
The stock sprocket sizes (stock gearing) for the Honda Grom (and Honda Monkey) is a 15 tooth front and a 34 tooth rear, in a 420 pitch.
The 420 chain is usually a standard or gold color, not silver like the picture.
1 down and 2 up (14/36) is the most popular setup.
Please contact us if you need help deciding on what sprocket sizes to go with. We can help your Grom do wheelies easier or have a faster top speed.