My current hot weather post-ride fave is Citradelic by New Belgium. Dang, it's good. Most citrus hops taste too much like grapefruit to me but the Citradelic has a tangy tangerine/orange flavor. It's 6% ABV but doesn't taste that strong.
My next favorite is a very similar but stronger tasting IPA brewed locally by a friend who opened his own microbrewery late last year. It's a popular meetup spot for local cyclists and I may stop by there later today after a group ride.
Otherwise, if I'm not in the mood for beer I like good ol' southern sweet tea in a mason jar. Sometimes I'll brew up my own switchel, a slightly fermented tea with ginger, lemon or cider vinegar, and a little yeast. It's not fermented enough to have more than a fraction of a percent alcohol, and it's very refreshing cold with a little sugar.