What type of Roadmaster bike (with 5 speed) has a 9 maximum power? Is it a road bike? Or a mountain bike? Or some other type? And when do you think this was made? In the 1990s? All the label says is made in the USA so I don't know how to find the model number. Also, how do I determine it's size? How much do you think this bike is worth? I want to sell it.