10x weaker than the usual paper clip. Pretty much like thin copper wire. Most wheels I see are drilled for Schrader and include an insert for presta valves, And so the wheel energy argument doesn’t delay, and I’ve never ever experienced a dilemma which has a Schrader valve that happen https://bookmark-master.com/story19769181/how-much-you-need-to-expect-you-ll-pay-for-a-good-live-chat-support-prestashop