Q. Most of the users says that Platina is less weighted and some says it is heavy. At high speed do platina bike will shake?

When you're with a pillion rider you'll feel the vibration at around 50-55 otherwise it's fine upto 60-65 and the vibrations aren't much in the old platina model

Above, 70, km/h it eill really, shake & vibrate.

It is light weighted and you might loose your judgement in heavy winds. above 50-55 you may feel vibrations to bike.