Folding e-bikes

What a folding e-bike is

A folding e-bike is bought for a journey with two halves: the ride, and the part where the bike has to be carried, stored or put in a car. That makes folded size and weight the specifications that matter most, and they are the two a manufacturer is least likely to put first. Measure the space you actually have - the luggage rack, the boot, the hallway - before choosing a wheel size.

Smaller wheels make a shorter fold, but they are more sensitive to potholes and drain covers, and their tyres wear faster. The frame hinge is what decides whether the bike feels solid: a single central hinge is simpler and cheaper, a twin hinge folds smaller. The motor and battery add weight exactly where you have to lift it, which is why a folded e-folder is heavier than the unassisted bike you can pick up with one hand.

Who a folding e-bike suits

• A commute that is only partly on two wheels: ride to the station, fold, ride from the station at the other end.
• Caravans, motorhomes and boats, where storage is measured in centimetres and every kilo is carried.
• Flats with a shared hallway and no shed, where a full-size bike is simply not allowed.
• Mixed trips: a drive to the edge of town, then the bike for the last few miles.

What to check before you buy

• Folded dimensions and weight, together. A fold that is small but 25kg is not portable, whatever the picture suggests.
• Wheel size: 20 inch rolls better over British road surfaces, 16 inch packs smaller.
• The hinge and its latch. This is the part that wears, and the part that decides whether the bike feels like one frame or two.
• Mudguards and a rack. On a folding bike these are usually model-specific, so they cannot easily be added later.
• A removable battery, so the bike can be carried in two trips and charged somewhere warm.
• Your train operator’s rules. Most treat a folded bike as luggage, but peak-time restrictions vary by operator and by route.