ADO A20 Electric Foldable Bike (battery faulty/replaceable)

The ADO A20 is a black folding bike designed around electric assistance, though it works perfectly well as a standard geared bike if you want to leave the battery at home. The fold mechanism makes it compact enough to carry onto public transport or store in a flat, and the geometry works fine whether you're using the motor or pedalling under your own steam. The bike is in good condition with minimal cosmetic wear, having sat unused for a couple of years, which means the battery has degraded and will need replacing. A replacement battery costs less than £150 and is a straightforward swap.

In unrestricted mode, the A20 can reach 35km/h once you've fitted a fresh battery. If you prefer a more controlled ride or need to stay within UK legal limits, there's a restricted mode that caps the assist at 25km/h. The motor integrates into the hub and engages smoothly, though you can ignore it entirely and just use the derailleur gears for conventional cycling. Without the battery installed, the bike functions as a normal foldable commuter with gearing to handle hills and flat sections. The fold itself is practical for urban riders who need to hop on and off public transport, or anyone with limited storage space.

This bike suits commuters who want the option of electric assistance without committing to it full-time, or riders looking for a portable second bike that doesn't rely on a working battery to be useful. The condition is good, and once you've sorted the battery, it's ready to ride.