iSinwheel U4 Foldable Step-thru Electric Bike 500w 55Miles Range

With a 250W motor (peaks at 500W), the U4 delivers strong performance and tackles inclines up to 20% with ease. Its 375Wh high-capacity battery with smart chip management ensures a safer, longer-lasting ride. Choose from 4 riding modes and cruise at speeds up to 19 mph, with a max range of 88 km. Designed for portability, the lightweight frame, removable battery, and foldable build make it easy to store in your car boot. Commute smarter with the iSinwheel U4 – your perfect ride for the city and beyond!

Power & Performance

• Motor: 250W (Peak Power: 500W)

• Max Range: Up to 55 miles (88 km)

• Speed Settings: 6 / 10 / 15 / 25 km/h (default)

• Unlocked Speeds: Up to 30 km/h (19 mph)

• Climbing Ability: Handles inclines up to 20%

• Zero-Start Mode: Enabled for quick getaways

• Waterproof Level: IPX4 – resistant to splashes and light rain

Battery & Charging

• Battery Type: New-generation lithium battery

• Capacity: 36V, 10.4Ah (375Wh)

• Charging Time: 4–5 hours

• Detachable Battery: Yes – charge at your convenience

• Battery Protection:

  • Temperature control

  • Overload protection

  • Waterproof design

• Charger Output: AC 100–240V, 50/60Hz, 2.5A

• Charger Input: DC 42V, 2A

Design & Build

• Foldable Frame: Yes – compact and easy to store

• Material: Durable aluminum alloy

• Net Weight: 58 lbs (26.5 kg)

• Gross Weight: 61.7 lbs (28 kg)

• Display: Large, easy-to-read LCD screen

• Lighting System:

  • Adjustable headlight

  • Tail light

  • Handlebar reflector

Comfort & Fit

• Tyre Size: 16" x 2.15"

• Seat Height: Adjustable from 29.1" to 36.2"

• Handlebar Height: 40.6" from the ground

• Recommended User Height: 140–180 cm (55.1"–70.9")

• Recommended Age: 14+

Compact Dimensions

• Unfolded Size: 56.3" x 20.87" x 43.31"

• Folded Size: 32.3" x 20.9" x 26.8"

What’s in the Box

• U4 Electric Bike

• Charger

• Pedals

• Instruction Manual

• Tool Kit