medium - 54.5'' top tube

I didn't find it in the bikes section though, found it in the garage sale section.

Starting a couple weeks ago, there's cx every wednesday night at 6:30 at marymoor. It was my first ever time doing it, there was a beginner class, I basically spent two hours jumping on and off my bike and attempting to learn how to clip in and out of my pedals. I'm sore all over today, but it was a good time. I've probably been on a bike roughly a dozen times in the last 15 years save for the last week, so I'm an absolute rank beginner.