Handlebar vibration at specific speeds is usually wheel imbalance: go to a professional. A wobble (side-to-side oscillation of the handlebars) is often linked to high wear or incorrect pressure: loosen your grip slightly and reduce speed smoothly without braking hard, then have the motorcycle inspected. Weave at high speed requires smooth deceleration only: no sharp braking or acceleration. Any new or worsening handling sensation warrants a professional assessment before the next ride.
