Front end shakes at 70mp

Answer 1

Uneven application of braking power at high speeds, caused by the heat that is made between the rotor and the brake pad; this is causing uneven stresses in the rotor. Such heavy brake usage aggravates the situation by providing uneven wearing along the circumference of the braking surface.

However, other possibilities occur with loose suspension ortire wear; i.e.wheels out of balance.