"Thank God I come from a different generation of values"
Please try to let your friend know how dumb welding the sprocket on is
NO manufacturer is going to take it back- Not now or after he screws it up more. Just curious- What would be the reason for the return? "I'm young,dumb and impatient and it didn't come with the automatic installation feature for my particular application".
I give you credit for at least trying to get information before using poor judgement.