Giant Defy2 derailleur attachment - help please

[IBarrett]

I've boxed up a bike to send to Spain and noticed the rear derailleur is only attached to the frame with one small screw right in the middle, then it relys on the wheel/frame/skewer bolting everything tight.
There is what looks like another space for a screw towards the back but there is nothing in it and its not obvious anything ever has been. If it had been broken I'd expect to see a remnant of some kind sat in the threads but I can see right through.

I appreciate this is a messy job but if someone could check their Defy2 and tell me how the detailleur is attached I would appreciate it.

The derailleur is Shimano Tiagra so alternatively if anyone has one of these and can tell me how it attaches it might help

Thanks very much
IanB

 

[MikeW-71]

The hanger should be attached by 2 small screws to the frame, right at the dropout. The derailleur then attaches to the hanger with one much larger bolt.

 

[IBarrett]

Bugger!
Thanks for the lightening fast confirmation MikeW-71
I'll unpack it and check again. I might have to find/pinch one from somewhere which is going to be fun but at least thats better than finding out when that single little screw shears.

 

[fossyant]

Your mech is attached with one bolt to the hanger. There should be a small screw on the rear of the mech - this adjusts how close the jockey wheels sit in relation to the cassette.

 

[Milkfloat]

If you get stuck, let me know. I just replaced my hanger and will have kept a screw.

 

[Smokin Joe]

If you get stuck, let me know. I just replaced my hanger and will have kept a screw.

There's a filthy joke in there somewhere.

 

[IBarrett]

I just told Mrs B somebody on a chat forum offered me a free screw