|This video shows what happens to the spring when the motor of this Continental GT revs up.|
I always respond that vibration isn't an issue for me at the low speeds I ride my 1999 Bullet. I sensed no vibration at all while riding the Royal Enfield Continental GT much faster during its press launch in Britain. I was too busy coping with riding on the left to worry about it!
A recent discussion on the BCF Bike Chat Forums focuses on the vibration visible in this Hitchcocks video of a Royal Enfield Continental GT.
Watch what happens to the rear spring when the fellow demonstrating the Continental GT revs the motor.
It's literally shaking!
An excellent video study of vibration in a British single is this YouTube video posted by Lone Wolf of the Moonshiners Motorcycle Club. Look what happens when a camera is attached to the handlebars of a BSA B31. Then compare the difference when the camera is attached to the rider's helmet.
It's easy to conclude that a big British single does indeed vibrate, but your body absorbs the worst of it before it reaches your head.