Briman's 50, and you're all invited. I was first thinking of a 50-mile ride... then thought 50K might be just fine. Then I learned there's a DakotaStrong (Livestrong) ride late that morning, which I'll ride, so the pubcrawl will be in the evening.
Starting and ending at
Monk's House of Ale Repute, stop by any time with or without your bike for the festivities.