Looks like magura Direct Mount but it's long, the forks can take a 24" or 26" and the mounting holes line up with both 24" & 26" rims.
Not sure how best to mount the Magura IDM mountings to the frame mounts
Different angle of the forks.
And a piece of blue foam I cut to what I expect the original spacer /mounting hardware to look like
Sorry if this is the wrong placei only acquired these about a week ago, and don't have any trials friends I can ask about this kind of stuff