Its odd that I have a few very low end items on my bikes that I intended to switch out as soon as I had more bucks or they showed wear and there they are - Still working - Still looking good...
SunRace long cage derailleur black, Sunlight Alloy crank set, WalMart Bell rear flasher...
A surprising thing is that when you finnally figure out they are proven, you can't find them anymore...
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)