10x weaker than the usual paper clip. Pretty much like slim copper wire. Most wheels I see are drilled for Schrader and include an insert for presta valves, And so the wheel energy argument doesn’t hold up, And that i’ve in no way had a problem using a Schrader valve https://thebookmarkage.com/story19713175/how-much-you-need-to-expect-you-ll-pay-for-a-good-presta-addons