We had a problem that developed after 900 hours of flying. At specifically 24 kts ground speed the nose would vibrate. ReplaceD nose tire, replaceD strut attach bolt, and checked the breakout force. None of this was bad and the problem persisted.
We then replaced the right main tire and brakes and he problem went away. Not saying this is the fix but it worked for us. No issues since.
Paid thru Dec 2021
RV-7A flying N782WP