Well, looks like he'll have to get out those spandex -- because the 49ers won.
In the wake of demands that he follow up on his promise -- including one from his son, who says, "Dad, get on the bike" -- Eskin's tweets have mostly evaded the notion that he actually be taking a ride anytime soon.
"I think I forgot the bet," he tweeted around 6 p.m. Sunday. But just a few hours ago, he appeared to be looking for some logistics on the route itself, perhaps signaling the planning stage of this dreaded trek, which, by the way, he could probably turn into a good cause, like raising money for charity.
"Anybody have the best and SHORTEST route," he tweeted around 8 a.m. today. "That's a LONG ride. Is there a san francisco on the east coast."
Here, Eskin, we Google mapped it for you. In the meanwhile, here's our advice to you ... next time don't let your mouth write checks your ass can't cash.
And bring a bike pump!