Thanks Guys
I'll try carefully getting the end caps off,
there is a small tip of the axle showing and it measures 10mm dia,
but looks to step up to a larger unk dia at the start of the end caps.
I need the spec's on this axel,
so I order/change over to the correct length/diameter,
solid axel to add the bobbin ends to this axle for attaching the trailer,
as they don't make a skewer with the bobbins ends, that is around 220mm long,
the OEM Skewer/Bobbin ends is 190mm long and is too short.
The OEM QR Skewer length is 190mm long and I have to have a 220+mm long solid axle for safe/secure trailer attachment, for attachment of my single rear wheel trailer.
Thanks guys........back to the rear axle........