Xiaomi Smart 250W Power 25kmh 16" Wheel TFT Folding E--Bike (Marks/Missing Item)

The Xiaomi Mi Smart Electric Folding Bike is a compact commuter machine designed for urban cycling and mixed-mode transport. It brings electric assistance to the folding bike category, making it useful for riders who need to cover distance quickly or tackle inclines without pedalling hard. The aluminium frame folds for storage and transport, and at around 15kg, it's feasible to carry onto buses, trains, or into small flats, though noticeably heavier than a conventional folding bike.

The heart of the Xiaomi is a 250W front hub motor that delivers a top speed of 25km/h, which is the legal limit for e-bikes in the UK and Europe. Real-world performance depends on rider weight, terrain, and which of the four riding modes you select. The motor uses a TMM4 force sensor on the rear wheel that reads pedal pressure, so the assistance ramps up or down based on how hard you're pushing. This keeps the battery from draining unnecessarily on flat stretches where you don't need help, and it makes climbing feel less like a slog.

The 16-inch wheels are typical for folding bikes and keep the overall package compact, though they feel less stable than larger wheels at speed and require slightly more effort to maintain momentum. The bike uses a Shimano three-speed hub gear with a slipper brake at the front and a Shimano IM31 roller brake at the rear, which is a solid combination for urban riding. The motor delivers 7.3 N·m of torque at a nominal speed of 330 rpm, enough to handle wind and gentle slopes without dramatically cutting into battery range.

The 5800 mAh lithium-ion battery stores 208.8 Wh and charges from a standard mains socket. At 42V nominal voltage with 2A output from the charger, you're looking at a reasonable charge time, though exact range varies with how much assist you use and rider weight. The bike has a 100kg maximum user weight limit. A small 1.77-inch TFT display sits on the handlebars and shows battery level, speed, distance, and mode selection via wireless connectivity operating at 2402–2480 MHz.

Day-to-day riding feels effortless in urban traffic. The electric motor removes the sting from acceleration at traffic lights, and the assist makes longer commutes or hilly routes feasible without arriving sweaty. The folding mechanism works well for intermodal journeys—commute by bike, fold it up, take the train, unfold it at the other end. It's worth noting that this particular unit has a missing smart chain tensioner, leaving the chain loose, and there are cosmetic scratches on the frame. The bike is functional but not cosmetically perfect. The dimensions are 1290mm x 540mm x 1010mm when unfolded, with a wheelbase of 908mm, and it conforms to European Standard EN15194:2017 for e-bikes.

This Xiaomi suits commuters who combine cycling with public transport, or anyone covering moderate distances where electric assistance makes the journey quicker and less physically demanding. The small wheels and compact fold make it practical for storage-constrained urban living. Riders seeking long-distance capability or pure pedal-powered efficiency might look elsewhere, but for short city journeys with a motorised boost, it delivers straightforward functionality.