I want to cover this properly because buying a bike in London can genuinely save you money on transport over a term, but the second-hand market also has some real risks worth knowing about before you hand over any cash.

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Online Marketplaces
Facebook Marketplace and Gumtree are the two most commonly used platforms for second-hand bikes in London, with a large volume of listings across almost every area and price range. Prices vary enormously depending on the bike's condition and brand, but a decent basic second-hand bike for commuting can often be found somewhere between £50 and £150. It's worth messaging a few sellers and comparing similar listings before committing, since pricing on these platforms is rarely fixed and negotiation is generally expected.
University Marketplace Groups
Most universities have their own Facebook groups or noticeboards specifically for buying and selling within the student community, and these are often a genuinely good source for bikes, since graduating students frequently sell bikes cheaply right before leaving the city. Buying from another student also carries somewhat less risk than an anonymous online listing, since there's at least some shared context.
Bike Shops Selling Refurbished Bikes
Several bike shops across London specialize in refurbished second-hand bikes, which cost more than a private sale but come with the reassurance of a basic service, working brakes and gears, and sometimes a short warranty. This is a reasonable option if you'd rather pay a bit more for peace of mind than deal with an unknown private seller.
Bike Recycling and Charity Schemes
Some charities and community bike projects across London refurbish donated bikes and sell them at low prices, sometimes with the added benefit of a basic maintenance workshop included in the price. These schemes are less well known than the major marketplaces but are worth searching for specifically, since prices are often lower than a comparable private sale.
Checking a Bike Isn't Stolen
London has a genuine problem with stolen bike resale, so it's worth being cautious with private listings, particularly ones priced suspiciously low for the apparent quality of the bike. Checking the bike's frame number against a database like Bike Register before buying is a simple, free step that can help confirm a bike hasn't been reported stolen. Meeting in a public place during daylight and being wary of sellers who seem reluctant to answer basic questions about the bike are both sensible precautions.
Basic Checks Before Buying
Testing the brakes, checking the tyres aren't excessively worn, making sure the gears shift smoothly, and checking the frame for cracks or significant rust are all worth doing before handing over money. A bike that seems too cheap for its apparent condition is worth extra scrutiny rather than treating it as a lucky find.
Frequently Asked Questions
Where's the best place to buy a cheap second-hand bike in London?
Facebook Marketplace, Gumtree, and university student marketplace groups are the most commonly used and generally offer the best prices.
How much does a decent second-hand bike cost in London?
A reasonable basic commuting bike can often be found somewhere between £50 and £150, depending on condition and brand.
How can I check if a second-hand bike is stolen?
Checking the frame number against a database like Bike Register before buying is a free, straightforward way to check.
Are refurbished bikes from bike shops worth the extra cost?
Often yes, since they typically come with a basic service, working brakes and gears, and sometimes a short warranty.
What should I check before buying a second-hand bike?
Brakes, tyre wear, gear shifting, and the frame for cracks or rust are all worth checking before handing over money.
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Key Takeaways
- Facebook Marketplace and Gumtree are the main platforms for cheap second-hand bikes in London.
- University marketplace groups are a strong option, especially around the end of term when students sell up before leaving.
- Refurbished bikes from bike shops cost more but come with added reassurance and sometimes a warranty.
- Checking a bike's frame number against Bike Register is a simple way to avoid buying a stolen bike.
- Testing brakes, tires, gears, and the frame before buying helps avoid an expensive mistake.










