Now, if you’re thinking upright and spin bikes are the same, technically you’d be right - a spin bike is an upright bike; however, there are several differences. The main difference is the rider’s position on the bike - you’re in an upright position, your back is straight (as opposed to being hunched over), and your arms are outstretched in front of you. An upright bike’s focus isn’t to closely replicate a real outdoor riding experience as spin bikes do. Instead, the focus is more on weight loss and fitness.