Trek Biker from St. Joseph, MO on 7/31/2006 4:52:47 PM:
I would either go to Dick's Sporting Goods if there is one local or follow the Nashbar link on this website and get a Pedro's chain cleaning kit. It includes a scrubber mechanism, a brush, degreaser, and lube. All of which is very easy to use. I usually lube my chain periodically while on the trail.....when it "klunks" when shifing grears its time to relube. Once home I give the chain and gears a good degreasing and then relube. Doubtful that you need to carry a spare chain. I'd guess that if you decide to, know how to put it on anyway.....little good it will do if you are clueless in that arena.