Stays are bonded into dropouts instead of the reverse. By bonding two precision moulded surfaces together, we eliminated the sacrificial plies in the stays, saving 5 grams per frame. These sacrificial plies were necessary when we used to machine the inside of the stays to bond them the opposite way (dropout into the stays). The hollow right dropout also gives the internal rear derailleur cable a straight shot through the chain stay and dropout, eliminating another bend and another source of cable friction.