VIBRATION

I have been riding my 1968 125 Special for 10 years or more but after a recent 1100 mile trip round France found my hands and upper arms were going numb due to vibration. I have recently fitted a damper kit on the front, with new springs in the forks and new engine block rubbers (the big ones) and the vibration is worse.....!!!......Is there a problem or do I have to do something else to get a smoother ride ...????....ideas...???
Thank you
Postie
Thank you
Postie