This was the first question I asked DT Swiss at the launch event for the ... The GRC 1100 wheels feature DT’s 180 hubs with a 36 tooth Ratchet EXP driver. Stated weights for the two depths ...

There’s no direct mention of it, but typically the 1200-level in DT naming means a 180 hubshell. That would mean a 36T Ratchet EXP freehub and SINC ceramic bearings. Yes, these appear to be unreleased ...