I am a Massachusetts resident and have suffered through a long winter. I took my "nice" bike off the road a lot of the time for fear that road salt and sand would degrade its components. The local winter does not quite seem over so I can imagine taking the bike off the road yet again. I am wondering if any company out there manufactures a chain and/ or cassette that are made from stainless steel or some other non rusting material that I could use without fear during the winter? (I ride a Surly LHT).