Not possible, I am afraid.
The front hub can be changed from thru axle to QR but not the other way round.
Remove the QR cap and measure the inner diameter of the sealed bearing and you can see it's smaller than 12mm so no possibility to slide a thru axle.
I also found out the hard way and had to rebuild the front wheel.
Yes, the current one won’t take a 12mm bolt
@pryally started
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Not possible, I am afraid.
The front hub can be changed from thru axle to QR but not the other way round.
Remove the QR cap and measure the inner diameter of the sealed bearing and you can see it's smaller than 12mm so no possibility to slide a thru axle.
I also found out the hard way and had to rebuild the front wheel.