Originally Posted by 13velos

I’ve never attempted to mount a Jubilee on a Simplex hanger, but really like those derailleurs. On my ‘73 Raleigh Competition, the short cage Jubilee will comfortably shift a 28 tooth cog. It does have Huret drop outs. I’m using it with a TA crank and 36/48 chainrings. It handles the big/big and small/small combinations no problem. I tried a 30 tooth cog and it didn’t clear, but I didn’t try shoving the wheel to the very back of the dropouts. I’d like to drop down to a 34 tooth chainring and see if it would still handle the chain slack. All things considered, the Jubilee is a pretty impressive derailleur.