Originally Posted by
WinterCommuter
Safe? Sure. Worst case, you put a leaky tube back on and use up an inflator or some arm strength squeezing the mini pump. I reused previously punctured tubes all the time in my college days (some with more than 1 patch). Now, the $2 for a new tube seems like a cheap alternative to patching, rolling, and hoping on an already punctured tube is road worthy.
Unfortunately cheap tubes usually hold air for a week or less. I'd rather use a quality patched tube.