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428 Conversion - Superlite RS7 Series Black Steel Rear Sprocket Honda Grom / CUB / Monkey 125 (2014-2021)

428 Conversion - Superlite RS7 Series Black Steel Rear Sprocket Honda Grom / CUB / Monkey 125 (2014-2021)

Regular price $35.95 USD
Regular price Sale price $35.95 USD
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Superlite RS7 Series Black Steel Rear Sprocket Honda Grom / CUB / Monkey 125 (2014-2021)

Made in USA!

A 428 Chain is required to run this sprocket on a Honda Grom.


The Superlite RS Series rear sprocket is the #1 selling steel racing sprocket on the market today. The unique RS8 spoke design offers superior strength with maximum weight reduction making it the lightest and strongest steel sprocket available. All Superlite steel sprockets meet or exceed O.E.M specs, offer a perfect fit and come with a lifetime warranty.

- Exclusive tooth profile for extended mileage output

- Computer generated RS7 design combines huge weight savings with exceptional strength

- Induction hardened steel with a black zinc plated finish

428 Chain is recommended for Honda Groms / Monkey / Cub 125with higher displacement engines

The stock rear sprocket size on the Honda Grom is 34 tooth. You can go up to increase your acceleration at the expense of top end speed. If you go down you can get a higher top end speed at the expense of acceleration. A few rules of thumb with gear ratios for sprockets are as follows:

  • Drop teeth on front/add teeth to rear = increased torque, increased acceleration, wheelies, racetracks with short straights
  • Add tooth on front/reduce teeth on rear = increased top end speed, open road cruising, lowers RPMs, better gas mileage, tracks with long straights
  • 1 down on the front is like adding 3 teeth on the rear
  • The bigger the rear sprocket, the lower the gearing and the faster the acceleration
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