27.5 1670g-1710g+/-50g (for reference only). 29 1670g-1720g+/-50g (for reference only). On left leg this is the positive air chamber with recommended pressure 120psi.
This is a negative air chamber, which is used to adjust the soft or hardness. Add positive gas first, then add negative gas The greater the negative air pressure, the softer the fork Negative air chamber should not be greater than 40 psi.