Wanted XTR M901 headset 1 1/8 (edit title)

[tangent]

M900 is 1"
M901 is 1 1/8"

.. M902 is 1 1/4"

Thanks @FluffyChicken , every day is a retro school day! … have edited my post.

Looking again at original packaging both model no.s are printed which confused me further!

Hope OP finds part or fix for the build.

 

[Spudalumps]

bumpo