I swapped a flat bar for a drop bar on a gravel bike and installed a GR9 ltwoo system.
Everyone was fine for the first 100 miles or so. Then while braking the rear brake locked up. Now I am unable to bleed it. Ie can not push any fluid through. Any ideas?
I did like the 11-51 range and it shifted nicely with a Shimano cues cassette.
https://youtu.be/f8Mo6jD_9Mg?si=KxQ43l1xF8FciirY
