Originally posted by ChipRGW
Could it be a grip issue?
By that I mean having a tendency to squeeze your hand on the handlebar. Even a little too tight after a 30-mile ride could leave your hand kind of weak.
ChipR
It does seem to be related to grip. On my last ride (43 mile round-trip commute), I concentrated on loosening my grip and changing hand positions more often, and my hands did not seem to get any weaker after the ride. But they didn't improve, either. However, I don't think it's a muscle fatigue problem because I can still grip things in my palm without a problem. I think it may be a nerve issue, as catfish suggested.
Thanks,
Tim