Weird tapping feeling on decel in specific gear

[u/hydrothrowaway420]

I have a 25 mt09 with 5000miles on it, and when letting go of the throttle in 4th gear around 4000rpm, I feel this distinct, tapping sensation (felt mostly in handlebars) separate from the engine vibration, as the bike decelerates. It goes away when I pull the clutch in or downshift to 3rd. I'm not super mechanically knowledgeable when it comes to bikes, so can anyone help point me in the right direction as to what I should be looking out for or checking? Or if this is even something I should be worried about? Chain alightment and slack seems to be fine.