This small compressor is effective for inflating car tires. It is relatively discreet and easy to implement. However take account of the slight air leakage during the unscrewing of the coupling. Personally, I add 0.5 bar during pressure adjustment recommended by the vehicle manufacturer. My Pressure Controller Pro m 'has a rate roughly in line with that recommended by Renault (Kangoo II for me). Moreover, it is equipped with an efficient white lighting and another red which can also flash an SOS (... --- ---). Additional security for a night troubleshooting. Against by the use of the special screw tip bicycle (Presta valve), is ineffective. Screwing to build on the valve causes a support on the mobile part of it and helps empty the tube. Unable to swell as the air escapes systematically !! But hey, its primary function is to inflate car tires ... ;-)