have driven a ford ikon at 140 kmph on mumbai - pune expressway but it was really shaky and wobbly had to reduce to 110 kmph to be stable.

i regularly run my Indigo Marina to 130-140 kmph on Vadodara - Ahmedabad Expressway, runs pretty smooth.

usually on highways (which are now much better than they used to be earlier) i keep the speed between 100-115 kmph.

btw i do not own any bikes while my scooter doesnt go beyond 40 because of traffic