Any retail endeavor is really, really, really hard to pull off these days. Retail bicycles, add another really. Non-mainstream, non-disc bikes, add another really. Adding in unrelated products to a specialty niche store, which tends to confuse many consumers, add another really. When the added products are non-digital cameras and vinyl records, add two more reallys. Maybe adding CBD chain oil to the mix would subtract a really, but I doubt it.
No doubt John knew this going in, as he knew the fate of the Bike Book Hatchet store. It's a risky proposition and always a labor of love. I don't know John, but he was very helpful with advice through this forum when I had a question about my film camera. I wish him and his partner the best in their next chapter.