ok. so still trying to finish up this sprocket kit and stuck again.... front sprocket is confusing the heck out of me. i got a RK 520 chain and sprocket kit and the front sprocket is flush on one side and the other has the numbers 3270 and a shoulder. I called a mechanic shop and they said the stamp side goes facing out, but I dont want to be wrong and have to redo it. does anyone have any suggestions? thanks for the help.