That seems like a really narrow range of height adjustment.
Also, this barely needs to be said, but it needs to have motorcycle-style handlebars with the controls integrated into the throttle, brakes, horn, etc. Obviously.
"Now some wooly headed philosophers and scientists said it was impossible to build a robot that could love. Bunch of quitters! I put our engineers on the problem and look at what they came up with inside of a month. Available in 24 designer colors with fully adjustable height level. Hear that's rhythmic clicking? That's the sound of progress!"