These are in pretty good shape, I measure 25.8-25.9mm on both of them and no lip from wear. They fit sliding rear calipers only, they will not work with AP radial calipers (OEM 44mm front / AP 38mm / AP 41.3mm) - the aluminum hat diameter is larger than fronts.
These are listed by Cobalt as being 13.5mm depth as delivered, I measure 12.5-12.9mm depending on pad. They've got approximately 5 hours of track time on them. Pad is named CRB.XR4.D491.
S2 Elise / Exige OEM Rear Sliding Calipers - $125 OBO shipped within US
I haven't had any issues with these, one of the slider boots is torn and shown in a picture. Hardware is included as shown, braided line is crusty but have at it. Mounting bolts to upright included.
