It's a novatech oem thing. What do you want to know?

I had some that came on a norco and no, you couldn't do squat to them as far as changing axle diameters or spacing. Call transition, they'll know. They chose them so they'll know what they picked.

 

I was trying to find the engagement point spec on the Joytech hubs when I saw them on all the 2018 Transition GX spec models. Came up with nothing except they share part numbers with the Novatec.

 

Novatec hubs feature on a heck of a lot of new bikes, you just don't know about it. They are one of the biggest hub manufacturers in the world.

Bottom line is they are what you'd expect, not the best hubs in the world but not junk either. You can find parts but from odd sources like eBay and direct from China. There is a huge verity of parts available so you can get free-hub bodies, axles etc in steel or alloy.