I just received and installed the Silca 105 Titanium Derailleur Hanger for SRAM for my S-Works SL8. Lovely little thing. The product listing states 2-6g lighter than the stock hanger, but sadly it’s actually 2g heavier than the OEM S-Works SL8 hanger at 11g vs the standard hanger at 9g. Not a big deal as it does look a lot sturdier than the stock unit, but a little disappointed with false advertising so I reached out to Silca and they’ve apologised and offered a full refund. I’ve decided to keep it on though. I’ve yet to test it but I doubt it’ll make as much of a difference as the Framesandgear direct mount on the Dogma (which has Dura-Ace).