Originally Posted by
Koyote
I've had this experience a couple times, with almost exactly the same scenario - right down to the details you've given. The common denominator was HEAT.
I concur. In fact, the only times I've ever cramped (usually my calves) has been on hot days -- never on cool rides, even when I've gone farther or climbed more.
My post-ride recovery drink is this stuff, from the fine folks at Martin House Brewing. After a sixer I feel like a new man!