Originally Posted by mcours2006

Yeah, I think full cable housing would work to prevent ice build up. The RD in the pic looks pretty bad, but surprisingly it still shifted. Don't know if it would have shifted full through all the gears as I only used two or three gears that day.

You mean like this:
Attachment 570732

I DIY'ed the mudflaps the day after that ride. For sure it would help prevent a lot of that ice build up on the BB. Wouldn't have help on the rest of the bike.