Sorry, they are. They are all bad. The bike shop many not be in the market for rocket engines, but they do use wrenches, and pencils, and valve covers. Imagine their phone rings every five minutes, throughout the work day, with people trying to sell these useful things to the bike shop. It's not any better just because the things are useful. If it's me, I'm not going to buy from a cold caller, ever. I already have suppliers. If I need a new supplier, I'm going to find one. You are making the world worse.
When I look for the new supplier for my bike shop, if word of mouth doesn't yield one, I'll probably be guided by some form of advertising. Do you really not understand the difference between making information available to interested customers by advertising, and calling people up, annoying 1000 people to get that one sale? Advertising can be a scourge, but it depends on how you do it. There is no way to spam that is not a scourge.
You’ve never reached out to a targeted, relevant industry contact in pursuit of a potentially mutually-beneficial endeavor? If so, have those individuals always anticipated your communication in advance?
