How To Remove Rear Derailleur Hanger. This should help relieve any pressure on the b-tension screw thereby making it. Its a Torx 25 and it sounds like the wrench is just spinning around as opposed to spinning the bolt itself.
Because of the large number of hangers out there the chances of having one in stock are pretty slim and often times you may not be able to source one from the bike. Remove rear wheel with most newer bikes this is really easy and doesnt require any tools. Use an allen wrench and remove the rear derailleur and let it hang on the chain.
Most rear derailleurs can be removed by unscrewing one bolt - that which fastens it to frames rear drop-out or removable derailleur hanger.
An example of a rear deraileur that has been removed wrapped in bubble wrap for protection and secured to the nearby chain stay. Older steel frames could have permanent dropouts which is strong as frame and are not replaceable. The hanger is designed to break to save the frame the frame shouldnt be broken at all a new hanger will set you back under 20 quid and it means the hanger did its job. I need to remove my rear derailleur so that I can attach an alignment tool and straighten things out.
