I have not switched bikes, or tires, or changed the height of my seat or handle bars (the first thing I checked to see if this was the issue). I have the same handle bar grips. I have no history of back problems, have not injured myself recently, etc. etc. I am at a loss to explain why all of a sudden my back is starting to bother me.
Anybody have any ideas as to what the problem might be? I am not old enough for my back to be giving out so I highly doubt that is the problem.
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