Hi everyone! I love all the amazing frames and amazing combos with 50t, 42t and the crazy gear ranges y'all use!

I've got a tandem with 20inch 406 wheels! And trying to get a 10 speed 11-42t cassette! Crazy, right!

I've got an ltwoo groupies a7 rear derailleur 42t!

And I've thought maybe it needs a derailleur extender like the zebra bike had in the thread?

(sorry for no pictures, forums rules say I need a min of 10 posts to upload any xD)