Hey all, just bought my first tw (08)and was going to do a few mods, including an o ring chain and 15 tooth front sprocket. I was going to order 80574415-15 (parts unlimited) through dennis kirk until i read the description and saw that it spec'd the sprocket at a 520 chain size, while the stock chain (which i already ordered an o ring replacement for) is a 428. I held off from ordering the sprocket for the moment (though it lists it as correct for the tw) because im not sure if its a misprint on dk or if thats just the wrong sprocket for my bike. Anyone ordered this sprocket and had ok luck, or is the 520 description true? Any suggestions are appreciated. Thanks!