Wisper 806 SE is 21kg https://wisperbikes.com/e-bikes/806-se-folding-bike/

Raleigh stow-e-way is 20kg with a 36v motor/battery https://www.raleigh.co.uk/stower2-st...ite#technology

B’Twin Tilt is 18.6kg with a less powerful 24v motor/battery https://www.decathlon.co.uk/tilt-500...d_8500548.html

Carrera CrossCity is 18kg with 20” wheels and a 36v motor/battery, and can be bought from and returned for service to any Halfords, join Cycling UK and
get a 10% discount. It doesn’t have a latch to keep it together so buy a bungee cord to hold it shut when folded, and buy a more comfortable wider saddle https://www.halfords.com/cycling/bik...-electric-bike
and https://www.cyclinguk.org/member-benefits/halfords