Pdlamb hits it square. It got bad enough that it hurt to pull a bottle out of the holder or reach into my pockets. It took much focus of attention to break the locked elbow habit but now it is quite natural. I check periodically because that tennis elbow thing took years to ever so gradually disapate. It probably would have healed faster if I stopped riding but that wasn't gonna happen.
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I don't do: disks, tubeless, e-shifting, or bead head nymphs.