Can somebody please explain to me why the total capacity on the Shimano GRX RD-RX812 (long) only 31t?
That must be a mistype, surely, as the Ultegra RX RD-RX800 (medium) is rated to 39t total capacity.
Or am I missing something crucial?
Missed that the 812 was Di2. The RX810 has 40t total capacity. Still weaksauce..