10x weaker than the usual paper clip. Pretty much like slim copper wire. Most wheels I see are drilled for Schrader and come with an insert for presta valves, Hence the wheel toughness argument doesn’t hold up, and I’ve in no way had a dilemma by using a Schrader valve https://bookmarksystem.com/story19566807/the-fact-about-prestashop-live-chat-support-that-no-one-is-suggesting