The PBI Sprockets Steel Alloy Honda Grom Front Sprocket is designed to counter balance your engine power through transmission adjustments. It is laser cut from Steel Alloy and is compatible with the stock 420 chain. Simple to install, this front sprocket will provide your Honda Grom 125 with quicker acceleration and higher top speed. The OEM sprocket size is 15 tooth – reducing it will give extra torque and acceleration, while adding an extra tooth will reduce acceleration for a higher top speed.
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