We have a matched pair, so essential you know, of Huffy, 5 speed, beach cruisers. I got them three years ago for $40 apiece on Craig's List. When I leave the playa I rinse everything off and WD-40 the chain to clean it. WD-40 is, unfortunately, not a lube, but will clean the chain just fine and everyone seems to have it. Then I put an oil base chain lube on, like you would use for machinery. This seems to protect it till next year when I clean that lube off and go to a dry lube, like a graphite. Oil seems to attract the dust. I really thought last year was it for my bike, it was making so much noise, but it seemed to come back to life and, again, worked really well this year. There was no noise from anything, well, except from me when I rode back from deep playa late at night or early morning too, uh, well, unable to make it comfortably. They will probably make a fourth year. YMMV, of course, but this has worked for me.