55-Mile Range from a Removable 36V 10.4Ah Battery
The removable 36V 10.4Ah battery supports up to 55 miles of assisted riding and can be charged on or off the bike for added convenience.
£44.99
TRAILSURGE
COMBINED CUSTOMER REVIEWS
OVERALL RATING ACROSS FOUR PLATFORMS
4.8/5
1909 customer reviews
Combined review snapshot
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RATING BREAKDOWN
NUMBER OF REVIEWS
78% of reviews are 5-starBased on the combined review counts above
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iScooter U4 Electric Bike
SKU: U4-2
Barcode: 6249327534223
Motor
500W
Battery
36V 10.4AH
Speed
15.5 MPH
Range
55 MILES
Was £589.99
£479.99
In stock
Early Black FridaySave £110 (18% off)
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We’re a genuine, authorised retailer for selected brands, with our own Nuneaton repairs workshop.
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As with a car, ask where you can take your ride if it needs a repair.
Be cautious if a seller can’t give you a local workshop address, especially if they ship from overseas or dropship.
Check with the brand that the seller is authorised and ask who handles warranty repairs.
- ShowroomVisit by appointment
- Repairs workshopOn-site servicing
- Our own stockDispatched by us
TRAIL SURGE LTD
Company No. 16935369 · VAT No. 521226239
Unit 62, Centenary Business Centre, Nuneaton, CV11 6RY
Supporting our local community
- NHS staff
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TrailSurge is a UK company and VAT registered too: Company No. 16935369 · VAT No. 521226239.
Klarna£160.00 ×3
Clearpay£120.00 ×4
PayPal£160.00 ×3
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Trail Surge Ltd · Unit 62, Centenary Business Centre, Nuneaton, CV11 6RY
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Usually 3–5 working days
Fully assembled delivery
assembly · Est. 5–7 working days
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TrailSurge Warranty+
1 year of cover UK support
Worth £159 Included
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What’s covered
Frame, forks, motor, controller, battery, charger and factory-fitted electrical and mechanical parts.
Cover & exclusions
Normal wear, accidental damage, misuse and unauthorised modifications are generally excluded.
How to claim
Contact our UK team with your order number and a few photos.
Manufacturer warranty · iScooter
Manufacturer warranty period · 2 years against manufacturing defects on iScooter electric bikes.
Manufacturer cover · Confirmed production faults affecting the original factory-fitted electrical and mechanical components following technical assessment.
Separate manufacturer terms apply. Warranty periods are not added together.
Road use notice:
This bike is over 250W and is for private land/off-road use only. Need a UK road-compliant option?
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Description
-
500W peak motor
-
55 mile range
-
Low step-through frame
-
16-inch tyres
The iScooter U4 is a low step-through foldable electric bike made for comfort, easy mounting and practical everyday use. It combines a 500W motor specification with a removable 36V 10.4Ah battery, giving up to 55 miles of listed range while keeping a compact folding design.
- Low step-through frame for easier mounting and dismounting
- Foldable design for storage at home, work or in a vehicle
- 36V 10.4Ah removable battery with up to 55 miles of listed range
- Up to 15.5mph assisted speed
- Disc brakes and front suspension for confident everyday riding
The U4 is a strong choice for riders who want a more comfortable and accessible folding e-bike than the smaller iScooter U1. The removable battery also makes charging easier, especially if the bike is stored in a garage, shed or shared space.
Best for: riders wanting a foldable, low-step e-bike with better range and comfort for daily use.
Please note: range depends on assist level, rider weight, route, tyre pressure and weather.
Specifications
| Collection | iScooter |
|---|---|
| Brand | iScooter |
| Motor Power | 500W |
| Battery | 36V 10.4Ah |
| Top Speed | 15.5 MPH |
| Max Range | 55 Miles |
| Charging Time | 4-5 hours |
| Shock Absorbers | Front suspension |
| Wheel Size | 16 x 2.15-inch pneumatic tyres |
| Brakes | Front and rear disc brakes |
| Gears | Electric mode and pedal assist modes |
| Bike Weight | 26.5kg / 58.42lbs |
Size & Rider Fit
Check rider measurements and sizing before you order.
Recommended rider height
4'11"–6'4" (150–192 cm)
Maximum load
120 kg (264 lb)
More measurements & dimensions
- Seat height
- 77–99 cm
- Deck size
- Not applicable — bicycle frame
- Built dimensions
- 143 × 53 × 110 cm (L × W × H)
- Box dimensions
- 126 × 21 × 65.5 cm (L × W × H)
Fit guidance: Folding low-step frame with a wide 77–99 cm saddle adjustment range.
Sizes are a guide. Rider proportions, footwear and setup can affect fit.
Low Step-Through Frame with Easy Folding
The accessible low step-through frame makes mounting easier, while the folding design helps the U4 fit into smaller storage and transport spaces.
Front Suspension, 16-Inch Tyres and Disc Brakes
Front suspension, 16 x 2.15-inch pneumatic tyres and front-and-rear disc brakes combine everyday comfort with dependable control.
What’s Included in the Box?
1 x iScooter U4 Electric Bike
1 x Charger
2 x Keys
1 x Tool Kit
1 x User Manual
Assembly Information
Assembly Video
Watch the assembly guide below before first setup.
Spare Parts for This Model
We stock a range of spare parts in the UK and can source additional components for this model. Contact our team to check prices, compatibility and availability.
Frequently Asked Questions
iScooter U4 Electric Bike
£479.99
