continental tirestire size 195/65 for volkswagon 2007 rabbit
tire pressure specs are printed on the tire,prob 35 psi
Look at the factory stickers on the doors. It should tell you what tires are compatible with your car and what psi to set them at. If not on the doors, check for a label on the glove box door.
So here is a HUGE difference between car tires and bicycle tires. Car tires are HVLP (high volume, low pressure), adn bicycle tires are HPLV (high pressure, low volume). Bicycle tires are subject to different centripetal forces in turning, are subject to lower payloads, and you an innertube. The result for a bicycle tire is you want minimum rolling resistance. A car tire is subject to heavier loads, is tubeless, and is dependent on uniplane friction to stay on the road when it turns. That, coupled with a motor turning X^n times as much power as a human being, and the demand for a plusher ride, you don't want high pressure in a car tire. 27 tires in the early 80's started being made with a high grade rubber and better manufacturing, and so a 27 tire NOW can handle pressures of 90psi. Higher end 700c tires, especially tubular (ironically, they don't have tubes though) can handle pressures of 180 psi+. Mountainbike tires are a better comparison for a car. For maximum footprint and traction, alot of mountainbikers will air down as low as 25psi (that's less than a car tire) when they ride trails, especially downhill where you don't need to pedal a sluggish high-friction tire. That said, if you are running 27's, look on teh sidewall for a psi indicator, but id say 85-90 is good. Be careful though, alot of standard pumps made for balls and light duty don't pump up much beyond about 80 psi. Maxing it out may blow out the plunger in your pump and then it is worthless. If your pump has a gauge, make sure the gauge indicates that it can handle pressures of 120 or so
