For those storing bikes outside here is one notable observation...
Neighbor down the street had two bikes stored out side here in Central Texas. One was under a plastic tarp and the other was under an old military canvas tarp (shelter half). The bike stored under the shelter half was in much better shape after a few months.
Also... Storing a bike outside near salt water? Don't do it unless ya have too...
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)