The topeak master adaptarack rack strong and durable rack designed specifically designed for klickfixracktime snap it system trunk bags and rear baskets topeak master adaptarack rack features klickfixracktime snap it system trunk bags and rear baskets compatible mtx quicktracktrade compatible with all topeak trunkbags amp mtx rear baskets 6061 t6 tubular aluminium construction and stainless steel fittings one size fits all 26700c