Axle Problem

a while ago i got a pair of wheels secondhand. they are quando tx hubs laced to mavic cxp22 rims.
my problem is that the front axle is 10mm and it won't fit in the fork dropouts of my conversion. so my question is, is it possible to swap out this 10mm axle for a 9mm with some kind of spacer.
thanks in advance,
mick

I think that's impossible, because you have to cover only 0.5 mm radius difference and the threads are deeper.
So, you end up with something like an inverted washer.

I suggest the following (maybe easiest) solution:
Use a standard 10mm hollow rear axle for QR and screw on the cones, spacers and nuts of your existing front hub.
Remove / grind / file / dremel the threads at the ends, leaving a 9mm diam. without thread.
Cut the axle to approx 108/110 mm and fix it in the forks with a QR.

Of course you can also take a round file and make the inside of the fork ends 10mm.
Don't make the slots any deeper, otherwise your wheel will be off-center.

You can also look for a standard M9 front axle, but then you also need fitting cones and nuts. Especially cones that suit your bearing cups and sealing will be hard to find.

Either grind flats on the axle (not the best idea, as it'll be a little messy on the threads)

or

Open up the dropouts in the forks (this gets my vote)

File down the fork dropouts.

no, how many times.
You always file the axle.
the threads will still work, as long as you do it only on two opposing sides.

Its what keirin (njs- ie. Kalavinka- I've seen it!), and other track mechanics do, never file the dropouts.
The axle is made of a much less strong metal than the dropouts, so you can do it faster too.

thanks for. the advice, i reckon i'll file the axle so. or else i mite buy another hub and swap them, the axle is about 130mm too so it looks like i have stunt pegs.