JT Sprockets are made from the latest generation of computer design and control metal cutting equipment for maximum durability Front sprockets are made from chromoly SCM420 steel alloy All sprockets are heat-treated and hand-finished to meet or exceed the highest possible quality standards
Front Sprockets are available in 13t, 14t, 15t, AND 16t options. The stock front sprocket size on the Honda Grom is 15 teeth. You can go down to 13t or 14t to increase your low-end acceleration. If you go up to the 16t it will be slower to take off but with the potential for higher top speed, ideal for those with a big bore kit. 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
Supported Models
Honda Grom 125, Honda Monkey 125
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