True riding outside is everyone39s preference but riding inside is better than not riding at all to make it more life like the mag has five adjustable levels of linear resistance to accommodate your workout with the power to vary your effort you39ll pass the time with ease as you pedal your way to better fitness powerresistance curves using powertuned technology and the powertap powermeter cycleops can graph the amount of power it would take for an average rider to maintain a specif