Joined: Mar 2014
Posts: 18,205
Likes: 6,605
From: ,location, location
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
I probably wouldn't call cheap heavy metal wheels safe becuase the only ones I see these days are low quality junk from random sources. There is zero benefits to a wheel like that. They cannot be trued and usually the hub internals are poor at best and many of the ones I have seen more recently have been for freewheels. Back in the day when BMX companies made magnesium wheels, they were probably better and they were a 20" wheel.
You could run them if you are desperate but I probably wouldn't.