I was ill prepared for such a ride as well. I only, at the last minute, tossed some knee warmers in my bag. But was missing shoe covers and adequate gloves.
At home I made the decision to jump on the Seven Evergreen and go explore. So glad I did! While I like TNR I will always love solo, gravel rides more. Because of the East wind I essentially made a big rectangle for my route. I found some different roads to ride and dogs to chase me. Nothing like a dog on your heals, in the dark, while listening to music to get the heart going!
Had it been 10 degrees warmer I may have gone further but my hands were starting to feel the burn of the cold a bit so I made the turn for home around 2 hours. With the tail wind I made great time on the way home. Ended with 3.5 hours. Glad I brought the lights!
We always talk of doing night gravel rides but they never seem to materialize...people are busy. More solo adventures for sure!