Which skewers have you tried? Try a proper closed cam one. Most Shimano will do. They're night and day compared to what I can see in the pic. Those are just recycling material.
Ah cheers, will try that! All the ones I used were external cam ones...
What about the anti-theft ones which you open with an allen key? Are those strong?
@Chak started
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Which skewers have you tried? Try a proper closed cam one. Most Shimano will do. They're night and day compared to what I can see in the pic. Those are just recycling material.