Driven Racing 420 Front Sprocket - Honda Grom / Monkey 125 out S 50 / S 150

S 50 / S 150

NOTE: Later VMB models use no

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Razor MX500

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Driven Racing 420 Front Sprocket - Honda Grom / Monkey 125 out S 50 / S 150Driven Racing EVO TECH 15 tooth front sprocket for Honda Grom and Monkey 125cc with 420 chain. This is a high quality, case hardened steel replacement sprocket. Driven Honda Grom Monkey 125 front sprockets for 420 chain is available in 15 tooth, which is the stock front sprocket size on the Honda Grom. A few rules regarding gear ratios for sprockets are as follows: Drop teeth on front add teeth to rear = increased torque, increased acceleration,