[kaybe]

In Brussels you can rent bikes from public transport at numerous stations in the city. Either be a registered citizen or allow them to put 150€ on hold on your credit card (and pay 1.60€ per day as long as no ride is longer than (I think) half an hour). It's easy to use and popular, so I don't think it'd be a problem.

[dingaling]

We have a similar scheme in Belfast now but the hold-funds requirement is a disincentive for people with debit cards.

Since you have to log in to your bank beforehand and pre-fund the card it eliminates spontaneity.

I see few tourists using them either.

[xur17]

A lot of cities in the US have similar systems. You can rent bikes with your credit card, and pay based on how long you have the bike.