I will solve the problem for you. Version with double gross weight battery:50.1 kg. Double battery version:48 V 19.2 lithium -ion battery ah 2. Version with double battery weight of the bike:41.5 kg.
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Unibike Q7 Adult Electric Bicycle 250W Motor E-bike 36V10Ah Battery Electric Bike 26 Inch Tire E-Mountain Bike
Aliexpress UK
Battery & charging: Battery: 36V 17.8Ah lithium-ion battery. Tyre type: Pneumatic tyre with inner tube (butyl rubber). Foldable: foldable. Weighing just 28 kg, this bike can support riders up to 100 kg.
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KOOLUX X9 adult E-bike,750W city ebike，48V13AH Electric Bike，20 lnch Fat Tire E-Mountain bike，Off-road electric bicycle
Aliexpress UK
The CY20 is built for riders who want an all-terrain folding e-bike that’s still portable. Its fat tires make it ideal for gravel, grass, or uneven paths, while its 250W motor ensures UK compliance.
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Aairsk Q7 Adult E-bike 250W Motor 36V 10Ah Battery Electric Bike 26 Inch Fat Tire E-Mountain bike Off-road Electric bicycle
Aliexpress UK
Model: KOOLUX X2. Enjoy a real-world riding range of31–60km, depending on terrain, rider weight, and assist level. Ideal for daily commuting inLondon, Manchester, Birmingham, and surrounding areas.
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JOOBIKE JOO1Adult Electric Bike 1000W 48V 17.5Ah E-Mountain Bike Men Electric Bicycle 26 Inch Fat Tire Off-Road E-Bicycle
Aliexpress UK
Model Bopzin E-Dirt Bike 2025 Performance Edition. • Extended Range: Upgraded 60V 35Ah high-capacity lithium battery provides 60-90km pure electric range and up to 110km in assist mode, perfect for long commutes and exploration.
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KETELES K800P Adult E-bike 1000W*2 Motor Off Road Electric Bike 48V23Ah Battery Electric Bicycle 26'' Fat Tire E-Mountain bike
Aliexpress UK
Hidoes F3 Electric Bike – 250W Motor | 48V 13Ah Battery | 20×4.0” Fat Tires | Foldable E-Bike. Its powerful suspension fork and hydraulic braking system provide smooth handling and responsive stopping power, while the bright LED headlights, turn signals, and brake lights keep you visible and safe during night rides.
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Unibike Q7 Adult Electric Bicycle 250W Motor E-bike 36V10Ah Battery Electric Bike 26 Inch Tire E-Mountain Bike
Aliexpress UK
【Cost-Effective Commuting】 The DYU C3 e-bike features a powerful 250W motor and a 36V 7.5Ah lithium battery, 15.5 mph max speed. Enjoy the perfect balance of power, speed, and convenience with this compact.
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KICKWEY K7 Adult E-bike 1500W Motor Electric Bicycle 48V23Ah Battery Electric Bike 20 Inch Fat Tire Men's E-Mountain Bike
Aliexpress UK
✅Long-Lasting Battery – 48V, 15Ah lithium battery for extended range on daily commutes or weekend adventures. Battery 48V 15Ah Removable Lithium Battery. Motor 250W Motor. ✅Compact & Foldable – Easily folds in seconds for convenient storage and transport—perfect for commuters and city dwellers.
eBay
KOOLUX X9 Adult E-bike 48V13Ah Electric Bike 750W Motor Man's E-Mountain bike 20 lnch Fat Tire Off-road Electric Bicycle
Aliexpress UK