The topeak mtx ex rear rack all of the innovative mtx technology features built into a composite deck great for lighter loads and the casual tourer or city rider mtx deck accepts all topeak trunk bags klickfixracktime snap it system bags and ear baskets topeak mtx ex rear rack features tough 6061 t6 alloy main tube and engineering grade plastic integrated rubber bungee helps to secure cargo integral storage drawer for small items 688g