Auto/petrol  garage.. use the air pumps

Many bike shops will help you out and pump your tyres for free. Your tyres will need regular inflation, so a pump might be a sound investment. Decathlon have a good range, starting from about 5 euros.

Most Gas Stations will have an air hose for pumping up car tires, just be careful you don't put too much or you'll have ringing in your ears. 

I would recommend the type of pump you can stand on (see photo) as they are quick and need little effort.

I don't like to use the air lines in gas stations because they are often badly calibrated (in fact, the ones around here seem quite neglected), so you can end up wiith the wrong pressure or a nasty accident.

Are you talking about a motorbike or a bicycle?  If the latter, it's highly recommended to buy a bicycle pump that you can mount on the frame so you are able to inflate your tires even in the middle of a trip.

I went to Geneve Roule behind the train station, they help me inflate my tires and there is close to my home.

Did they also raise the handlebars for you?

No, I didn't know the handlebars are too low for me before they help me inflate my tires, I will ask them when I come back from my trip.

Thanks Paul