I'm posting this publicly so I can't wimp out - I just signed up for the LA County Bicycle Coalition's LA River Ride on June 7th. Specifically, I signed up for the 70 mile route from Griffith to Long Beach and back.
The most I've ever biked in a day is about 40 miles, so 70 will be a challenge. After months of not biking, I've been on my bike almost every day for the last month, and a few weeks ago I did 30 miles on my knobby-tired mountain bike without any difficulty, so hopefully I'll be okay once I get back on the road bike and start racking up miles. Who wants to train?