Looks like 39.9mm between axle centre and peg/bolt is the ideal but this
Suggests there’s a bit of wiggle room on that.
Edit: Actually that’s the pm axle plate to go with the pm bone. The oem axle player doesn’t look like like it has such a deep slot for locating on the ‘peg’ so will likely need to be pretty bang on that 39.9mm dimension.
Flat bracket with two fixed holes that the mudguard eyelets attach to, and one slotted hole on a angle that you can slide a bolt up and down until it intersects with the path of the most likely axle plate. v similar to what I did. Unless you get lucky with the 39.9mm
Looks like 39.9mm between axle centre and peg/bolt is the ideal but this
Suggests there’s a bit of wiggle room on that.
Edit: Actually that’s the pm axle plate to go with the pm bone. The oem axle player doesn’t look like like it has such a deep slot for locating on the ‘peg’ so will likely need to be pretty bang on that 39.9mm dimension.