Hey guys, have you ever had your bike start to vibrate rhythmically? Normally I’ve seen this when riding without hands, and the handlebars start to shake and can quickly escalate into something dangerous. I think of this as resonance, and was very happy that my carbon road bike doesn’t seem to exhibit it, but after a few trips to the shop it now has developed a resonance.

Can someone who knows what I’m talking about expand on the phenomenon and suggest recourse, other than holding onto the handlebars?

thanks.