I currently have a SHIMANO TOURNEY RD-TX800 7 8 SPEED BIKE REAR DERAILLEUR GEAR MECH DIRECT ATTACH. Unfortunately, the guy who I purchased the Cycle from, he didn't tell me the derailleur had been threaded while fastening it onto the derailleur hanger at some point. This has left the derailleur loose and I'm unable to remove it from the hanger. I've purchased a new hanger, but when I look on eBay for this derailleur it must be quite old because there was only one seller. Can anyone tell me if there's an updated version to this derailleur that will fit my Cycle? Thank you!
https://www.ebay.co.uk/itm/SHIMANO-...878709&hash=item5b491f7b45:g:Vw4AAOSwTmtavRGE
https://www.ebay.co.uk/itm/SHIMANO-...878709&hash=item5b491f7b45:g:Vw4AAOSwTmtavRGE