10x weaker than a paper clip. Almost like thin copper wire. Most wheels I see are drilled for Schrader and include an insert for presta valves, so the wheel toughness argument doesn’t delay, and I’ve hardly ever had a dilemma with a Schrader valve which might be far more sturdy https://bookmark-vip.com/story19807778/how-much-you-need-to-expect-you-ll-pay-for-a-good-presta-addons