release

Past weekend I had a 400km trip, and noticed that cruising in 6th gear around 120-130km/h (about 80mph), the handlebar suffers from intense vibrations, to the extent that my right hand gets totally numb in a matter of minutes, forcing me to release the grip time to time to "awake" it... have you...

I have a problem with my bike being very jerky. I'm not sure if it's me or the bike! The main jerkiness occurs when i twist the throttle from the starting point or if i release the throttle completely, however softly i go on it. It's ok if i increase or decrease the acceleration as long as i...