I had a new rear tyre a week or so ago, changed professionally. It's been fine since then and I gave it some stick at the weekend once I'd worn the tyre in.
Since that ride, it started making a terrible noise like I was dragging something plastic along. I got the bike on the stand and it's obvious that the chain is far too loose; the top half of the chain is rubbing and catching along its bottom edge. So I tried the wheel nut so I could tension the chain properly and it was seized.
Are these problems likely to be related or is it more likely that the garage have just tightened the wheel nut more than I do? Any suggestions/tips???
Hopefully it's just a case of getting the wheel nut loose, tensioning the chain and all's good, but I want to check it's nothing more sinister first.
Cheers
