Welcome to the support-ticket-system of schaltauge.comIn order to streamline support requests and better serve you, we utilize a support ticket system. Every support request is assigned a unique ticket number which you can use to track the progress and responses online. For your reference we provide complete archives and history of all your support requests. A valid email address is required to submit a ticket. If you are looking for a rear derailleur hanger please send pictures with (both sides from the hanger). Pictures only up to 5 MB please.