10x weaker than a paper clip. Just about 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 hold up, and I’ve hardly ever experienced a dilemma having a Schrader valve which can be additional https://tetrabookmarks.com/story19764977/the-single-best-strategy-to-use-for-presta-addons