on a tangent, the design of the cannondale MTB SRM units required a modified lockring removal tool. it's not necessary for the road units or, if memory serves, the 1x MTB units...but the 2x MTB units had a thicker spider. a few turns on a lathe would modify a tool.

doesn't affect you, but just wanted to be clear that self-install is not always trivial because people think they have the right tool but actually need a custom one.