How can I start a wholesale bike business (I am a wholesaler) and how can I get people to wholesale bikes from me?

From your question, you can see that the wholesale business of bicycles is not doing well, the traditional sales channels are not going well, resulting in fewer people to take goods from you, understandably, your business has entered a downturn. How to get through the downturn, let the business take off? I think, as you said, it is very important to do some advertising, through advertising, you can let your target customers recognize you, create trading opportunities, open up new sales channels.

So, if I were you, I would analyze the market and see what are the possible target customers in the market. Then take different promotional countermeasures and hit them one by one. Take my city as an example, now KFC / McDonald's and other fast-food chains have launched "Home Delivery" and other courier services, and these courier services often use bicycles as a means of transportation, then these stores will need to buy large quantities of bicycles, so we can choose these chains as the target customers, aiming at their needs. Where the demand is, publicize your features, and ultimately realize the transaction.

The above is what I can think of and I hope it helps you in solving your dilemma.