Shimano Deore SP mech ?

[ferrus]

I’ve not encountered this mech before. It looks identical to a Deore RD-DE10 so I’m guessing the SP label was just for the US market?
https://www.ebay.co.uk/itm/26663151...ESHR3V&hash=item3e147a15b8:g:3VAAAOSwRK9lmHSW

 

[ferrus]

I’m sure nobody’s interested but in case someone is, this guy explains the SP designation at 7’48”.
“...I had no idea what SP stood for, was it Super Pooper, was it Super Pussy, I had no idea.”
Well apparently it’s specifically from/for a Schwinn Voyager SP from 1983. So now you know.

Disappointing really, my money was on Super Pooper.