Lately, when my bike is cold (25 to 40 degrees outside) it is making a terrible noise from up front. I thought it was the fans coming on and dragging on something, but the fans rarely come on and not when it is around 32 degrees outside. Still that is what it sounds like. The noise stops when I stop the bike. It doesn’t happen at low speeds. I have to get up to speed (30+ mph) before the noise returns.
I’m guessing a bearing. Wheel bearing? Speedo cable and gear? The fan? It sounds like it comes from where the fairing is.