Hi, I'm new around here, but I've been stalking this topic for some time now. So, I decided to register and post, since I'm 90% set on buying one of these frames...

My plan is to swap the frame from my actual gravel bike (2023 Orbea Terra) for this one, but there are some questions I'm looking into, which I kindly ask if some of you can help me with...
So, my actual gravel bike, as stated, is an Orbea Terra from 2023 with carbon frame (M size), with 2x Shimano GRX mechanical transmission and 40mm Caracal Race tires. From the pictures of this LCR018-D frame, I see mounting hardware and holes on the frame that allow the use of my actual 2x mechanical transmission, right?
Another big question is about the tire clearance, as for my gravel riding, the Caracal Race tires in 40mm are a must. I know this frame is rated for 38c tires, but the pictures of the Eurobike'25 build show it has Wolfpack Gravel Superspeed TLR 40-622 tires mounted. There seems to be some clearance left on the frame and fork, and according to BRR, although they have the same rated size as the Caracal Race TLR 40, these tires are actually 2mm thinner after install (using the same control rim and tire pressure, BRR states de Superspeed is 38,3mm wide and the Cararal 40,3mm wide). Is it safe to assume the 38c tire clearance is conservative, as with other frame manifacturers, and this frame will take the Caracal Race TLR 40 which has a real 40mm semi-slick profile?
Regarding that Eurobike'25 build, the frames on the Google Photos link and catalog, they all seem to be from the same frame size. Do you now which size it is?
Thanks.