Riding home friday and anther rider pointed out by rear was a little flat, this would explain the sluggy feeling. put some air in and got it home. Today i went to have a good look at it and found a nail in the tred... purchased a tyre repair kit fixed the hole, pumped it up and went for a ride .... happy camper... BUT wait turned to go home found tyre going flat again, service station, air and then home. looking at the tyre i could hear a hissing and traced it to a spoke in the rear tyre tried to tighten / loosen the spoke and the air comming out would slow but not stop, the spoke looks a little bent but hard to notice. Now sitting in garage slowly leaking ANY ADVICE ????