Make Model Spec OPEL ASTRA TWIN TOP TWIN TOP. 1.6 TURBO, 2.0 TURBO EDITION 17 OPT tyre pressures Size Front Tyre Buy Tyres 225/45R17 W 91 1.9 BAR / 15 PSI Buy Tyres 225/40R18 W 92 2.5 BAR / 29 PSI Buy Tyres What should my pressure be?
