This upright exercise bike allows for a variety of movement, such as riding while standing or in a racing position, so multiple muscle groups can be exercised as a biker changes position. Plus, users with conditions such as spinal stenosis or osteoarthritis may find the forward-leaning position to be more comfortable compared to that of a recumbent bike. Easy to get on and off the bike, it also provides precise seat adjustments, and offers 40 resistance levels--the most in the industry.