For the last 2 winters I've strongly considered converting my winter bike in order to keep the components (derailleurs essentially) from suffering from the ravages of salt covered roads. Then I take my first ride on studded tires for the season and realize that gears are damned nice to have.

As far as shifting performance in winter goes the biggest problem I've had is with a front derailleur seizing up and not wanting to shift. A swift kick from my boot usually gets it to shift down.

This year my winter bike will be my old Peugeot road bike. it's in nice condition. I don't want to trash the derailleurs. So I have two options I figure:

1. Put on a sacrificial set of derailleurs and cassette
2. Go SS.

I'm leaning towards #1. I can find old derailleurs cheap, cheap, cheap. I even have a rear one that'll probably work fine.

Is there any advantage to SS that I'm missing and should consider?