PBI USA 60 Tooth Rear Stunt Sprocket for the Honda Grom and many other Honda style engines is manufactured from aircraft quality 7075 T651 Plate Aluminum. Harder than steel and far lighter to save on unsprung weight. A division of Chris Products, Made in USA! This sprocket will use a 420 pitch chain.
Replace the 34 tooth stock rear sprocket on your Honda Grom with this 60 tooth stunt sprocket for massive wheelies! 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