Hello again. Can you remember I had trouble with my commuting bicycle and my town's technicians. I could finally solve it. It seems I bought my bicycle with a set of nuts that didn't belong to its wheels' axles, although have the same look as the right ones. I happened to go to a British technician's and he found out the real reason of all my troubles. It seems I couldn't get how the last technicians I had gone to were able to get the rear wheel locked for a long time, in spite of using wrong nuts, but I wasn't. Might anyone of you give me some information about that, please? To be more precise I should say the technician pulled easily my bicycle's nut's broken threads out of it.