Gp5000 hard to find
#51
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Yup, that's the ETRTO standard for hookless. Zipp says that the rim is capable of higher, but I don't know how much that matters in practice. I'm also running most tires in the 55-60psi range, and it's not like I'm small for a road cyclist. Even at my heaviest, I don't think that I would have pushed that 73psi limit.