I have fitted a Hope 10-48 11spd cassette, and my derailleur (SRAM GX 11spd) will not move smoothly from the 48t down to the 40t, I have also fitted a Sunrace mech extender in place to try and get it to work with the 48t cog.

So now I am faced with two options...

1. Buy a SRAM GX Eagle 12spd derailleur to get the range (I read that this derailleur is cross comparable).

2. Buy a Garbar cage to retro fit to the existing SRAM GX derailleur.

Has anyone had issues with this cassette and getting a SRAM derailleur to work.

Iím not interested in getting a Shimano one, as thatís a change of shifter which Iím not doing.

Cheers in advance!

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