Okay, Shimano has now officially announced 12-speed road, bringing it into line with SRAM and Campy. Now all of the Big Three ‘go to 12’, for road at least (& Campy goes to 13, with gravel/Ekar). ⚙
Question is now, “When does it end?”.
Or CAN it even end, given that,
1) Adding an extra cog...