Its rare to find a rear fender on a bicycle because they add unnecessary weight and enthusiasts rarely ride in the rain. Of course, the weather can prove rather unpredictable depending on where you live. Should you find yourself commuting to work every morning on your bike, an uninvited rain storm can cause water to spray up onto your backside from your rear wheel, virtually ruining your work day.
A clever solution to this unfortunate problem is the Ass Saver ($10+), a lightweight, polyurethane emergency rear fender that quickly and easily fastens underneath your bicycle seat for protection during inclement weather. Simply tuck it underneath your seat when not in use, and redeploy at the first sight of rain.
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