Where's a good place to buy a beater bike in London?

Question

I'm moving to London and I just need to get a junker commuter I won't cry over when it gets stolen. Should I check the usual spots - ebay, craigslist, gumtree - or are there any good used shops?

Answer 1

There are good cheap bikes here: http://rover.ebay.com/rover/1/710-53481-...

Answer 2

You can see cheap bikes in UK http://astore.amazon.co.uk/discount-bike...