Hi , the rear wheel not working , so in the bike shop not tie very well the nuts , so the rear wheel spin in the same place and bite the cable , i put in the position the cable but i dont have full power only move a little When i put a little power in the handle and i hear a noise inside like a cluth and very bad noise and the wheel die, so i desarmed all the rear wheel and i dont see nothing wrong, the cables and the cables inside the wheel are ok , what do you think is happen? I have the dyu d2 F
thanks so much for your time .