We have a no longer use Pro-Form exercise bike for sale. It has a bigger, more comfy seat. He's in pretty good shape. It belonged to our daughter, but she bought a newer bike with "higher performance". This bike has 10 different magnetic resistance levels. Resistance is handled by digital controls on the console.The XP 185U upright bike features a simple Step Through design that makes it easy to get on and off the bike. Semi-recumbent bikes tend to be easier to ascend than upright ones, which is ideal for those with mobility issues. The seat on the recumbent bike supports the lower back and can also benefit people with back problems.