As one who spends entirely too much time on the Craigslist bicycle listings, I cannot help but make these observations:  Your bicycle is for sale, not for sell.  You put it on craigslist to sell it, not to sale it.  There are more pressing problems in the world, I’ll grant you, but I can’t think of any I come across with a greater frequency.  Sometimes I think people add one or the other phrase to their posts just to irk me.