I used to have inverts on my 250r race bike. I cracked the frame along with it. But I also snapped a elka shock, cracked a swingarm and bent countless top and bottom shock bolts.
Its a hard call, I know some people have them and are fine. I have a racing buddy that broke a frame with stock suspension.
I think it has more to do with the way you ride and what you are doing with it. I was nailing 5th gear tables/ doubles/ tripples 60+ feet.
RPFLU member and co-owner.
Hardtails is all we do.
#NOLINK
#MAKEHARDTAILSGREATAGAIN
#SUSPENDTHIS