Hanging bikes off plasterboard walls - help!

You could try using 3 or 4 large anchors through a baton of 2x4 wood and then mounting the hanging device to the baton of wood. It's all about spreading the load.

Dov is right, or find the stud and fix to that if poss.
The plasterboard alone isn't strong enough to hang a bike really

hello.
im hoping the studs are timber not that shitty metal stuff...

Thanks for the advice, fellas & fellettes, most helpful.

I have a feeling the studs are metal, but we're going to phone the architects and find out (it's a new build flat, so they should be able to tell us).