Samus can turn into a ball and literally roll around everywhere she needs to get on the ground, so she doesn't need a bike which would actually have less mobility since it can only ever move forwards and backwards as well as not fit through spaces Samus already squeezes into when in ball mode.
She also had a spaceship, so she really doesn't need a bike to get anywhere else.
Samus can turn into a ball and literally roll around everywhere she needs to get on the ground, so she doesn't need a bike which would actually have less mobility since it can only ever move forwards and backwards as well as not fit through spaces Samus already squeezes into when in ball mode.
She also had a spaceship, so she really doesn't need a bike to get anywhere else.