I plan to buy a Shimano GRX 1x11 groupset. My understanding is that Shimano offer two left-hand shifters:
- 2-speed for 2x11 setups
- Dropper-post lever for 1x11 setups with a dropper post
I do not plan to run a dropper post in the future, but I might switch to 2x11 if I decide that 1x11 does not offer enough gears.
It seems more sensible then to buy 2x11 shifters and simply not connect the shifting cable on the 2-speed lever to anything. If I choose to move to 2x11 speed then I do not need to buy any new shifters.
Is there any reason not to do this?