thanks folk's i really dont know what i was thinking of when i bought this ,it really does defeat the purpose of packing light, my god it nearly weigh's as much of one of my loaded panniers emmm.but i diden't check the weight of it ,if i sent it back it would cost me a fortune on postage so im stuck with it ah well not to worry.oh i did buy a cable lock as well so im just going to use that .