Reason 27 is one of my favourites; the inherent flexibility of the bike means there are a myriad of nook and crannies across the city you can get to on a bike that are denied to other traffic. For such a big and busy city it's surprising just how many places you can get to on your bike which are untouched by cars and where you can ride freely...
The fabulous 'ViewTube' cafe up on the car-free Greenway overlooking the Olympic Park developments? Bikes can do that!
The quiet, lush, green backwaters of London's canals? Bikes can do that, too!
The wide expanses of Hampstead Heath? You can go there on your bike, and if you fancy a swim in one of the bathing ponds you can park your bike right outside, rather than fighting for parking spaces with Highgate's finest 4x4s.
A gentle spin up along the banks of the Thames from Hammersmith? Just lovely, and you can't go there in a car.
Best of all you could do all of the above on a bike in a day - by foot it would take forever to get between them all by public transport. By car the congestion charge and the parking would cost a small fortune... I always think it's especially important for families that these spaces exist so parents can ride with their kids, and let's face it even us grown ups like to get away from the buzz of the traffic from time to time.
It might seem like a small reason to love cycling in London, but it's important none the less and ranks at #27 in our list. What are your reasons?