Is there an update around this? 31.5+8+8 = 47.5 = 39.5+4+4. That's the rear. That means that you can (just) run a GP5000 in 35C. Can we please get a formal confirmation of that?
And at the fork, is it safe to assume that we can also fit 40mm WAM?

Method: i found that caliper for inflated tyre + allen key of 3-4-5mm between tyre and chainstay is the easiest way to measure stuff with enough precision. (my LTK 268 measures 34.4mm + 4mm on either side, at the back. Plenty of space at the front. So with enough optimism it could pass as a 35C frame (as in 35mm, strictly just 35mm)).

Last: front derailleuyr clearance question. I dont do 1x.

https://youtu.be/tApX8P_7Pp0?si=L6olwCNktM5nMfzy&t=232 Patrick Lino has a video with 32mm gp5000s on the xmcs 26/34 measuring 34.5mm on the rear with what appears to be around 5mm or so of clearance from a shimano FD

anyone with experience mounting bottles between the arms on their base bar/mounting plate? curious to see if it would support ~1.5L of hydration which would be a little over 1.5kg depending on carb density in bottles