Today I climbed hawk hill fixed for the first time -- twice. 46x16. Feels real good. But on the way home I dropped my chain on a real nasty bump down a moderate hill, good thing I've got a front brake. Upon further inspection my chain ring is pretty far off center now, could all the steep climbing and/or steep descending have pulled it out of alignment? I checked the chainring bolts like a week ago and they were torqued correctly and evenly. Or maybe it's just because it's a piece of ****, whatever no-name crankset that came on the bike.