Many times when I see a bike for sale, the frame size is not listed. I ask the seller what the frame size is, and they don’t know. And they don’t know how to measure it. I usually explain how to measure the frame size, but sometimes they still don’t understand since they don’t know what a seat tube or a crank is. So I made this video to show how to measure a bicycle frame.
**If the video was useful or interesting please give it a “thumbs up” and consider subscribing.