If they're anything like the older MTB levers then you can replace the blanking screw on the ones without like SLX to give you free stroke adjustment, but it's still basically pointless. I'm not sure if the newer MTB or road levers are still like that though.
If they're anything like the older MTB levers then you can replace the blanking screw on the ones without like SLX to give you free stroke adjustment, but it's still basically pointless. I'm not sure if the newer MTB or road levers are still like that though.