'I love Paris', say the T-shirts in the French capital. May be they should also have T-shirts saying 'Paris loves bicycles'. There are at least 20,600 of them zipping across the city on a pay-as-you-go-basis and then thousands more owned by individuals. The French call bicycles velos and a French company, Velib, runs 20,600 of them across Paris. There are restrictions on some streets. But not on most.