Stock Honda Grom comes with the 420 chain.
Front Sprocket for the Honda Grom in the 428 chain for all those with higher displacement engines.
A 428 Chain and 428 rear sprocket is required to run this sprocket on a Honda Grom 125.
Easy to install and highly effect, these front sprocket for Honda Grom 125 will allow you to accelerate quicker or to achieve higher top speed! OEM sprocket size is 15 tooth, going down will give you more torque and acceleration on the low end, however adding another tooth will slow down your acceleration in return for higher top speed (usually recommended for larger displacement engines).
This is an upgrade to the 428 Chain. 428 chain is recommended when you increase the displacement of the Honda Grom.
