The smart trainer assumes that the variable to change is the resistance, assuming the flywheel speed remains constant. Smart trainers are designed to apply a specific resistance to the flywheel based on the speed and pre-selected power target. Here comes the big question: does it matter what gear you are in when using ERG Mode?įirst, let’s take a look at the design of the smart trainers to begin to understand why gear selection would make a difference. You set the wattage, for example, 200 watts, and whether you pedal at 95 RPM or 65 RPM, the trainer will adjust resistance to ensure each pedal stroke is putting out 200 watts. Whether you become fatigued or not the belt still moves at the prescribed pace. You set a pace for the belt and you hold onto that pace for as long as you can.

In ERG mode, the trainer will automatically adjust the resistance in order to hit the pre-selected wattage target in a workout. Level mode is when you, the rider, control the resistance of the trainer and shift freely in order to produce your desired wattage.

Smart trainers, such as the KICKR, come equipped with two modes: level and ERG mode. Indoor training brings consistency and ease for completing workouts exactly as prescribed, especially with the addition of ERG mode. With the addition of smart trainers to the market, cyclists and triathletes alike are moving many of their outdoor sessions indoors. At one time it was standard procedure to wear out bike tires and withstand hours in a fixed position. Indoor turbo sessions over the course of the last few years have had a complete makeover.

Perfect shift trainer