The gauge for my rear Deore shifter is off. It's the M590 shifter.
When I have it in 1st, the red-line is in the position of 2nd, and so it goes all the way up to 9th (which is in the same position as 8th since it's out of room).
Is there any way to reset the red-line so that it is correct again? Everything else is working fine, it shifts fine through all 9 gears. The only problem is the red-line.