Topeak pte-bag super tourist rack

"QuickTrack™ is an ingeniously simple attachment system which allows our TrunkBags or rear baskets to interface securely to an MTX rack. Simply slide your TrunkBag or rear basket forward in the track until it locks in place. Push the release button and your TrunkBag or rear basket slides off the track and goes with you. A durable tubular aluminum rear rack for around town errands or long distance touring. QuickTrack™ compatible for use with any MTX TrunkBag and rear basket. - For 26"", 27.5""(650B) & 700c wheels - 640 g"