BadassBox 4 Shimano 2019 Tuning Kit Box Bad Ass 40 Km/h E6000 E6100 E7000 E8000
Compatibility is based on the speed sensor,SM-DUE10, which is integrated into the chainstay. The use of the Badass chip tuning box is at your own risk and at your own risk. I have since sold that bike so there's no need for this box any more.