Ortlieb Standard Handlebar Bag Mounting Set - No Lock

ORTLIEB mounting-set allows you to conveniently and securely attach your handlebar bag to your handlebars.

Universal mounting kit for ORTLIEB handlebar bags and baskets
This standard mounting bracket is nice to have on all your bikes so that you can move your front handlebar bag from one bike to another.
For maximum flexibility, there is the QR system with quick-release fastener – completely tool-free to install and removable in seconds.

Instructions HERE