Hello folks,

I do have a doubt about my er9 groupset...

It works perfectly when connected to the charging cable (via the app and sync with the levers), but as soon as I plug it out, nothing happens... No green light on the rear derailleur...

I guess it's not normal but hum...?!

I might have solved my problems... But... Don't ask me how, I don't really know... Plug out/plug in batteries, long press on RD, reset, fine tuning and that's it!

@max_the_rider Did you buy this as a complete bike, painted by TanTan?  What groupset is on it and can you share how much this cost?  Thx much

I bought this frame back in 2020 with this custom design, and only the frame from Tantan. I built the bike by myself.

About the groupset, it's a full mechanical Ultegra R8000... A real pain in the a** with the handlebar but it works flawlessly!

Frame 599$, custom design 70$, thru axle 24$ and shipping fees (to Switzerland) 85$

The current configuration is:

TT-X21 size 52
Full mech Ultegra R8000
Magene P505 powermeter with 52/36 Spécialités TA chainrings
Prime Primavera 56 wheels
Conti GP5000S TR