wheel spacer question

To put it another way, if someone came on here and said they installed a new set of aluminum wheels, torqued them to spec on install and then never touched them again, and then tried to blame the wheel when it fell off because the lug nuts loosened up they'd be eaten alive with members saying it was 100% their fault. They never re-torqued the wheels like every aluminum wheel manufacturer ever states you need to do.

But if the same person came on here and said they installed a set of billet aluminum wheel adapters, torqued them once and never again, and then drove until an adapter failed because the lug nuts loosened up at least half the responses would be "adapters aren't safe", even though it was literally the same method of failure and 100% the fault of the installer for never re-torquing the adapters.

Properly made and maintained adapters don't add any more force on the primary studs than a wheel with the same offset as the adapter/wheel combination. The secondary studs aren't subject to any more force than the primary studs would be with a wheel of the same specs. If the material of the adapter is chosen properly and the studs are the proper grade the only difference in the combination is an extra set of lugs/studs that have to be maintained the same as the primary set would be with an aluminum hub/wheel.