Shimano Dura-Ace lockring weight.
Also picked these up for the SL8 as I love the one on my Allez (so easy to get bottles in and out of it), and found these on sale. Went for the matte finish to better suit the bike.
I took advantage of the Black Friday Sales and bought some Absolute Black gear + picked up some bottle cages too for the SL8. Really unsure about the OSPW, but it’s the new version and I do think it looks kinky AF (reminds me of flesh tunnels in ears). A while back I managed to source some of the discontinued Dura-Ace aero style rotors, so will put those on the Allez and move the Galfers onto the SL8.