This is a great product, has stiffened up my front end without having to buy new hubs or fork lowers.
I converted my front hub by drilling out the 9 mm axle stubs (this can be done on some hubs, my hub is a Commen?al sealed, which I think is a rebadged formula).
Great news ? no more loosening of the front wheel. I?m looking into a rear wheel 10 mm conversion next.