Here "ride" is being used to describe a carnival attraction that people sit on, like a ferris wheel, roller coaster, etc.

As a verb: You ride that which moves and it gives you an experience of riding eg: You ride a car, You ride a bike, You ride a horse A ride: - as a noun - is that which you GET ON, to get the experience of riding "I am going on a ride" this could be a drive in a car, a ride on a horse, a ride on a bicycle. (giving you the experience of getting away or a short escape) The ride now becomes the object, eg. the horse is the ride, the car is a ride, the bicycle is the ride In your reading extraction above: The Cranium Shaker is the ride Often in the English expression people would say 'Let me show you my ride'- another way to say, "let me show you my car!"