I have had Bad Luck with The Old Coaster Sturmeys 3 speeds..
and I bougt a New Schwinn from a Department store thinking I would use
the S/A 3 Speed coaster on a Rat Bike...
I rode it around the Parking lot for 10 Minutes after I bought it...
and went Back inside and Got my Money Back.
Just my experience...
But I won't run anything but a Shimano Nexus now.