Can I make the derailleur gap to the largest sprocket slightly larger?

[Racing roadkill]

That's good! What mech and cassette are you using BTW? I'm thinking of trying a 11-32 or 34 t cassette with my 9 speed Tiagra (short cage) It works fine with a 30t at the moment.

It won’t with a 34 t sprocket, you’ll need at least a medium cage GS derailleur.

 

[buzzy-beans]

That's good! What mech and cassette are you using BTW? I'm thinking of trying a 11-32 or 34 t cassette with my 9 speed Tiagra (short cage) It works fine with a 30t at the moment.

The derailleur is a drop dead gorgeous Huret and the cassette is/was a 12/28 7 speed which replaced a (murderous for my legs) 13/19