New design from Apr 20, 2026. Main axle design has been changed. Please use these photos: ============================================================= To fix big transmission gear on transmission threaded rod use "Option2" in assembly video on our YouTube channel (starts from 5:02): We do not use sleeve with fixing screw anymore. We use threaded rivet and M5 nut to counter it instead. Screw rivet and counter nut towards each other to prevent them self loosing. Also you may
