Removable gear hanger for slot dropouts..

Is there some sort of removable gear hanger that would fit into a horizontal slot dropout frame to allow me to run a derailleur occasionally?

http://www.bicycleretailer.com/sites/default/files/styles/flexslider_full/public/images/article/gallery/hanger_01.jpg

I’ve found this but I can’t find the source of the image or where to purchase it.

Any links would be helpful.

Thanks.

http://www.freeborn.co.uk/dmr-10mm-chain-tug-mech-hanger-1

you need a dmr chaintug hanger

link

or a santa cruz chameleon hanger

i’ve used both and both work fine but the dmr one will fall off when you don’t have a wheel on/is a littler trickier to work with when taking wheel out etc

Excellent, they are just what I’m looking for!

Cheers.