My ER9 is still going strong. When it works, it's f**king great! Though I'm not ignoring the problems. Hence why I don't ride my ER9 bike in the rain & don't wash it with a hose, I rotate my bikes to minimize wear-n-tear and I don't do things like shifting both the left/right shifters at the same time.

Also I'm theorizing that some aftermarket batteries might be an issue as well. That's the one variable that differs between all the working/non-working units. This is probably why Shimano uses their own proprietary unit and SRAM insist on only using their OEM batteries. I could imagine a sh**ty battery could potentially toast the ER9/X RD electronics.

Even with all the issues and the non-existent LTwoo support, I'd probably buy another ER9 groupset when it's on sale. The performance-price-risk factor is still worth it for me.

where are you located?

I think it is 90mm rear travel with 190x45mm shock.

FM121 Frame Travel:120mm

Steel pedal expanders. Mine are from Risk I've seen them branded differently
Strongly recommend if you don't like having clean threads or skin on your knuckles. I thought the threads would still be fine but no, it took me an hour to remove them despite all the grease I used. Metal is very soft and bends when uninstalling, threads are toast after 1000km.
Thankfully the threads on my PM crankset are still okay. My look pedals were ruined so I'm gonna try the ultralight zeray pedals as a replacement. Hope I don't give an update from the hospital

Had a similarly shitty experience with ZTTO pedal extenders

They snapped on an MTB ride...luckily riight at the end of a hectic descent. Never again

If I’m not mistaken 1200 is the original 505. This is the 2023 CFR505 SL (Super Light).

Exactly!  Although the shape and geometry stayed rather unchanged, the usage was shifted to more allroad  than bikepacking. As its less strong e.g  it's not having all the mounts.
That's not bad in general , but if anybody wants that for bikepacking, the SL is maybe not the best choice.