Description The Ortlieb Coupling Set will allow you to connect your Rack-Pack Urban to your Back-Rollers. Unlike the standard Rack-Packs, the Urban model clips do not integrate with the back-rollers without this connector set. For all Rack-Pack Urban models with silver aluminium buckles on the sides. Includes: Four buckles for combining older Rack-Pack Urban models with Back-Rollers or Sport-Rollers on the rear rack (except City models). Ortlieb Product Code: E227 Not sure if the Ortlieb Coupling Set is the part you need? We can help! One of the best things about Ortlieb is their huge & ongoing range of spare parts & replacement parts. We have been stocking Ortlieb bags & accessories at Abbotsford Cycles for decades because they make excellent products. And they can last you a lifetime because their hardware can be replaced & they bags can be repaired. The reason we recommend these products is how confident we are that you will never need to buy another Ortlieb! But we know it can be tricky figuring out which part you need, and which is compatible with your bag. So if you are having trouble, get in touch. We have manuals & years of experience finding & fitting the correct parts for Ortlieb bags & racks. And we are confident that your Ortlieb can continue to be the best waterproof bag you can buy!