We started this project in 2017 and step by step we reached the target right now after 4 years, changing all the parts at least 10 time each. Thinking about electronics, about mech, about both. But definetly we understood we got the “mech”. Fully cnc about 7075 and fully “added”, mean 3D printed about PA12. Any part replaceble as spare and really widely compatible.
You can drive it with Campagnolo 12 speed and Campy EKAR in 12 speed or with Ratio Technology uprade kit for 10 or 11 speed mechanical SRAM shifters
You can drive with it, a wide range of 12 cassettes, just choosing the right lenght of cage
46T (short cage) - 52T (long cage)
Ingrid 12s or Sram 12s
Campagnolo 12s and EKAR (in 12s) triggers and Ratio technology upgrade kit