There's a lovely 33-space Cycle Hire docking station in Tavistock Street, Covent Garden. It's a shame you can only cycle one way down Tavistock Street.
In fact, if you want to cycle legally eastwards from here, you'll have to cycle down Henrietta Street, Bedford Street and Floral Street, taking you about 1km out of your way.
You will have the same problem trying to return your cycle.
This is just one example among many of how Westminster Council are ensuring as few people as possible use Cycle Hire. Not only are they doing nothing to reduce motor traffic, they are forcing cyclists to take completely unreasonable routes where there are much more direct alternatives. You'll notice in the pictures there's more than adequate roadspace.