I am really enjoying this new hobby/sport and all the information and knowledge y'all have amassed on MV.
Being new to motorized, two-wheeled fun, many of my initial concerns are safety-related [since I don't heal as fast as I once did

That being said, (during a recent ride) upon reaching 50+ mph I noticed slight instability in the front end [bouncing] as well as a 'popping' sound/pressure in my ears. (I noted that when I ducked my head [as if to be more aerodynamic] the popping disappeared and, instead, it sounded like a jet engine -- the bouncing seemed to disappear as well).
Does this seem 'normal'? What would bar ends do? Are the tires balanced?
I have: stock scooter [no mods], earplugs, 3/4 helmet with face shield
So much to learn, so little time!
Thanks, Glyn