10x weaker than the usual paper clip. Practically like thin copper wire. Most wheels I see are drilled for Schrader and include an insert for presta valves, Therefore the wheel energy argument doesn’t hold up, and I’ve by no means had an issue with a Schrader valve which are a https://thebookmarkage.com/story19713175/how-much-you-need-to-expect-you-ll-pay-for-a-good-presta-addons