The kids bike has got old style QR dropouts ... with the 5mm skewer
Various googling seems to show that these might or mint not be usable with a different axle however half of this seems to be 5+ years old... and whether syntace was going to stick work etc.??
I'm looking at getting a new set of wheels as he shares them across 2 bikes but the current Superstar 20% off has no stock on QR for the rear.... (and hasn't for months) ...
If SS have the 10mm rear adapter in stock you can use a DT Swiss 10mm QR through bolt instead-
I've got one on my BFe and they're much nicer than feeble roadie skewers.
Damn.... the 10mm is also on the not available .. only 12mm 🙁
This'll fit SS Switch hubs (they're rebranded Novatec 4-in-1 882s)-
If you have a 135x12 rear hub you can convert it to 135mm QR standard by sticking one of [url= http://www.chainreactioncycles.com/nukeproof-conversion-kit-qr-rear/rp-prod34779 ]these [/url]in the hub.
Obviously 142x12 or 148x12 wont fit as the hubs axle is too wide to fit the frame.
If you have a 135x12 rear hub you can convert it to 135mm QR standard by sticking one of these in the hub.
If you've got a 135x12 hub just get one of these [url= https://www.rosebikes.com/article/reverse-qr-axle-adapter/aid:713184 ]https://www.rosebikes.com/article/reverse-qr-axle-adapter/aid:713184[/url]
I've got one for my pitch and it massively stiffened the rear end