Keiser M3i
Product
Zone 2 and VO2 max training (Norwegian 4x4 protocol) without compromising low back; cardio for cognitive health and Alzheimer's prevention
"There is a bike called the Keiser M3i studio indoor bike. The Keiser M3i is unique in my experience in that you can elevate the handlebars enough to sit in a comfortable position with a decent saddle such that I can do the V2 and V4 training in a comfortabl..."