Retrofittability and repairability are key issues as part of sustainable product development, but must always be considered in context. The safety and reliability of products are central concerns for Bosch eBike Systems. Thus, if a product is damaged, it may be that a repair is not feasible under these aspects. In such cases it is necessary to replace the entire product. It is important to Bosch to find the best possible solution, so that the eBiker can use his/her bike quickly again and continue to enjoy it for a long time.