KingSong
The KingSong 16X is a 16-inch electric unicycle (EUC) released in mid-2019, built around a single 2200W hub motor (about 4200W peak) on an 84V system. It pairs a large 1554Wh battery (21.6Ah, LG cells) with a wide 16x3-inch pneumatic tire, giving strong torque, quick acceleration and a manufacturer-claimed top speed of 50 km/h (31 mph). The 16X has no suspension; the fat tire alone soaks up minor road imperfections. KingSong claims up to about 145 km of range, while independent and real-world testing typically lands nearer 70-100 km depending on speed, rider weight and terrain. At roughly 24 kg it is a substantial machine carried by a retractable trolley handle, and it adds a built-in speaker system, RGB lighting and KingSong app connectivity over Bluetooth. As with any unicycle, balancing it is a serious skill that must be learned before riding at speed, and full protective gear is essential.