With my Bionx factory software and Bionx Bicycle Interface collar I can tune many performance parameters of your Bionx bicycle. Change assist offered at all levels of assist. Adjust assist commencement speed. Adjust battery regeneration levels. Change display brightness. Assess battery health. Rebalance battery cell voltages. Identify battery problems. Repair batteries. Replace Battery Management System cards. Repair or replace many parts. Customize your Bionx riding experience.