What should my pressure be? Make Model Spec CAYMAN 3.4 BLACK EDITIONCAYMAN. 18 OPTCAYMAN. 19 OPTCAYMAN. 19 WIDE RIM SPECCAYMAN. 2.7CAYMAN. 2.7 24VCAYMAN. 2.9 BASECAYMAN. 2.9 BASE 18 OPTCAYMAN. 2.9 BASE, 3.4 S 19 OPT 1CAYMAN. 2.9 BASE, 3.4 S 19 OPT 2CAYMAN. 20 OPTCAYMAN. 3.4 24V SCAYMAN. 3.4 RCAYMAN. 3.4 SCAYMAN. ALL BLACK EDITIONCAYMAN. BASE, S.CAYMAN. BASE, S. OPTCAYMAN. SCAYMAN. S SPORTCAYMAN. STANDARD