It's a keyed lockwasher to fit into the keyed groove on the steerer tube. I just measured the thickness at 1.97mm. You can see the part you're after in this photo on Riv's listing (the second part from the right). https://www.rivbike.com/cdn/shop/files/hsfsa2.jpg?v=1775238285&width=2048
Danny Madison, WI On Friday, May 22, 2026 at 9:16:49 PM UTC-5 Brady Smith wrote: > Hi all, > > A few weeks ago I took my Roadini apart and put it back together again in > a successful attempt at getting rid of a certain noise of uncertain origin. > But since, my headset, hitherto perfectly functioning, has started to come > loose. In perusing the Riv website, I found the relevant schematic, and I'm > missing part 2 listed below. I *think *it's a 1" by 1mm spacer--does > anyone know for sure? > > Thanks, > > BMS > [image: Screenshot 2026-05-22 at 8.16.06 PM.png] > > [image: Screenshot 2026-05-22 at 8.12.45 PM.png] > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/rbw-owners-bunch/b51c9d91-e60d-49c3-9c06-710a44feea3en%40googlegroups.com.
