Password:JDM billet pulley adds a unique look to your GY6 and is a direct replacement for the booty-ass cast fan pulley requiring no other modifications. It replaces the worst looking component inside the swing arm assembly. It weighs slightly more than stock, but then again so does that engine swap. Your Ruckus by design was begging to be modded to hell and back. You bought that thing because it was a blank slate to make it truly unique and only yours alone… that’s what it's always been about.