i've been commuting this summer on a wal-mart special...it's a good little bike but i can already see it's taking a strain from the commute...the frame and rims/spokes are getting a little creaky...once I lose confidence in whethr it will hold together, then that's it...I'll strip it down, save the parts, but look at maybe upgrading my ride... even if it's ok...if there's a perception of it not being safe, i'd rather get somethign new.... just some thoughts...