According to Alta, the 2017 Redshift MX never had a range problem: The issue was heat. Electric vehicles strive to maximize the energy transfer rate from the battery to the motor. The faster the rate, the quicker the motor can spin, the faster the vehicle can go, and the more heat the system will produce. If any one of the many temperature sending units monitoring the dozens of individual 18650-size cells within the bike's battery pack sensed temperatures over 150 degrees Fahrenheit, the machine automatically limited power to prevent long-term damage. For riders who grew up ripping around tracks on internal combustion power, it felt like a machine on its way to dead.