Tuttio Adria26 Ebike Mainline Tuttio Adria26 Ebike Mainline is an original electrical wiring harness designed for the Adria26 electric bike, responsible for connecting the controller, motor, battery, and handlebar components to ensure stable power and signal transmission. Built with durable, well-insulated cables and factory-matched connectors, it offers reliable performance, easy installation, and full compatibility, making it ideal for maintenance and replacement of the bike’s electrical system. Please note that accessories require a short preparation period before shipment. The standard delivery time for accessories is approximately 9–12 days. For accessories, returns or exchanges are only accepted in the case of confirmed quality issues. We are unable to accept returns for reasons such as personal preference or incorrect purchase.