Adria26 Electric Bike Battery Key Replacement The custom key for the Tuttio Adria26 electric bike is an essential accessory for your e-bike. These keys are specifically designed for the battery-powered Adria26 dual-motor electric bike. To ensure smooth order processing and that you receive the correct key, please prepare clear photos of your battery label and the lock core code before placing your order. Our customer support team will contact you promptly via email once your order is noticed to verify the details and assist with processing.