The slight disadvantage is that the roller brush turns slightly slower than in some uprights. Metal is a conductor of heat and allows the heat to dissipate away from the motor. And hair doesn't stick to the roller brush, except very long human hair. If you are absolutely set on the idea of a bagless vacuum, Riccar is not for you. Riccar does not make a bagless vacuum cleaner.com and www. The upright will adjust to virtually any height or thickness of carpet automatically. Some Riccar models include a switch to did connect the belt from the roller, enabling you to vacuum bare floors without the brush revolving. Overall, a very good choice for most people.epinions. Here are a few of the features that may apply to your situation; 1) The models feature a free floating adjustable nozzle. I hope this helps. 4) The brush roller has very stiff brushes that are natural fiber. The Riccar upright is primarily designed to use on carpeted surfaces. The bad news is that you don't want to use the upright on bare floors, even tile or hardwood floors. Riccar dealers are not allowed to ship outside of their assigned areas.com . These motors have far more suction than normal upright motors. 5) The motor in the Riccar uprights is actually a canister style motor. Pet hair is picked up much better than with most vacuums.about. Most motors on upright vacuums today are encased in plastic. Metal motors last longer, and cost more. This means that the attachments have far more suction but less brushing speed. This review is on the single motor upright models. Riccar vacuums get consistent high rankings from Consumer magazines and exceptional ratings from review websites like www. Riccar upright vacuums are now made in America, with many outsourced parts. three phase induction motor manufacturers 3) The dirt goes into the bag before the air goes through the motor. Here is who should not get the Riccar upright; People with all bare floors. The dirt goes in the bags first, in the Riccar. But almost every "Made in USA" product is made with some parts shipped in from abroad. . And buying from an unauthorized dealer will void your warranty. You should always buy a Riccar from an authorized dealer in your area.Riccar upright vacuums fall into three categories, eight pound lightweights, single motor upright, and the Tandem Air models. 2) The motors are all metal. Some uprights allow the dirt to pass through the fan chamber of the motor before the dirt enters the bag. This keeps the motor clean and free of debris. Plastic is an insulator of heat ad seals heat inside the motor