I was pretty athletic.

Started riding horses at age 5. (still ride when I get the chance)
I did a slew of track and field events until high school, when I just focused on sprinting and hurdling...until I got injured. In high school and college there wasn't much time for anything besides horses, that being a year-round sport.

As a younger kid, though, I played softball, basketball, soccer. I didn't live in a good area for biking, so I was pretty much out only occasionally on a cruiser. I wasn't good at some other wheeled balance sports like rollerblading or skateboarding. I am supposedly built for swimming, but I had a bad experience when I was learning as a toddler, and aside from that, I find it to be NO fun. I'm a land sports girl. I've been weight lifting since maybe 7th grade.

Getting my road bike recently was a big adjustment. I could ride it fine--I mean, you never forget, right? But I'm still a noob, so the body position along with balance whatnot is taking some time with respect to taking hands off the bars. I wasn't the most graceful learning to go clipless, but I let my nerves make me tense (same sorts of tensing up and getting nervous put me on the ground a few times from horses as a young kid, so no changes there!). The whole hill climbing thing is also new because there were NO hills at home.

I'm also new to the whole endurance training thing. That could be the biggest factor in terms of athletics background.