10x weaker than a paper clip. Just about like skinny copper wire. Most wheels I see are drilled for Schrader and come with an insert for presta valves, Hence the wheel energy argument doesn’t hold up, And that i’ve hardly ever had an issue by using a Schrader valve that https://thesocialcircles.com/story5443499/the-definitive-guide-to-addons-prestashop