Update by user Oct 18, 2019 customer choose not to fix bike. too much $$$ Original review posted by user Sep 18, 2019 The bike is equipped with a currie tech system. They are in need of a replacement batt. and the motor is having some noise/grinding when in use. The system is a crank drive unit and was purchased from Perennial Cycle in February 2016. What can we do to get this bike taken care of for the customer? Cheers, Hunter Sheldon