Here's an unbelievably cool vintage kettle screen shot. There is an old episode of Adam-12. It is season 3 episode 7. The title of the episode is called: "Have a nice weekend". It originally aired on November 7, 1970. If you go to approximately the 18:40 and 20:40 minute marks respectively, you can clearly see a very sweet looking, vintage 26'er with steel wheels and a vintage Weber work table connected to it.
It may be a 22, but the size of the big steel wheels makes it look like a 26 for sure. In the scene, the two cops are walking around someone's back patio looking for the culprit and the Weber in sitting right there in plain view. Really cool to see. If you subscribe to Netflix, Adam 12 is on instant view so you can watch it directly from your TV or computer. Adam 12 might also be playing on Hulu, Amazon Prime, or some other service as well. I'm not sure though. I saw it on Netflix. If anyone else gets a chance to see this, please give me your thoughts on whether this is a 22 or 26. Looks like a 26 to me.