"Adhesion limits" refers to the maximum capability or capacity of something to stick or adhere to another surface or material. It represents the point where the adhesion becomes weak or ineffective. Full definition
While interpreting the grip levels of the stock STI can be a challenge, the Spec C's more feelsome steering delivers more of the information that tells a driver when adhesion limits are being reached. (evo.co.uk)
Although understeer is still the prevailing attitude at the adhesion limits, the chips inside the main control unit will momentarily nudge the car's front end towards the apex, encourage the tail to swing round just a little bit, then speed up the torque flow again as you open up the steering and the line finally straightens. (automobilemag.com)
While it lives up to its claims, the transmission has an affinity for abrupt downshifts when cornering below the adhesion limit. (automobilemag.com)