Shimano Dura-Ace 9000 Rear Hub Quick Release SkewersItem SpecificationsRear Axle TypeStandard QR
These are not easy to come by and the price is very fair. You are probably looking at this either to (1) replace one you lost or damaged (though hard to imagine damaging these given how sturdy) or (2) you are not getting what you need out of open cam skewers. My situation was the latter - having a rear wheel that kept migrating toward the left chain stay despite trouble-shooting every conceivable cause (dish, true, dropout alignment, frame, etc. etc.). Despite tightening my previous lightweight, aero, slick, open-cam skewers as much as I felt comfortable the wheel would simply not stay put under load. As so many people have written about in countless online forums, the dura ace skewers do the job - problem fixed. Are they heavier? Yes. Do I care? No.