Can the Koolux X7's 48V 25Ah battery be removed for charging?

Yes. The high-capacity battery is removable, letting the bike stay in storage while the pack charges indoors. It is a large, heavy battery, so support it with both hands and confirm it is locked firmly into the frame before riding.

How should I judge the real-world range of the Koolux X7?

The 25Ah capacity gives the X7 a larger energy reserve than most Koolux models, but the longest figure assumes favourable assistance and conditions. Higher motor output, hills, cold temperatures, low tyre pressure, frequent stops and rider or cargo weight can reduce distance substantially, so plan a reserve rather than riding to the claimed maximum.

How difficult is the Koolux X7 to store or lift?

The current manufacturer specification is about 43 kg and 177 × 70 × 122 cm when assembled. It needs ground-level bicycle storage and is unsuitable for frequent stair carrying; check door width and turning space as well as floor area.

Should I choose the Koolux X7 or the dual-battery X11?

Choose the X7 for one removable 25Ah pack, hydraulic brakes and a substantial long-distance fat-bike platform. Choose the X11 for two batteries totalling 23.4Ah and a folding frame that reduces storage space. The X11 is also much lighter at roughly 25.8 kg, although it is still not an easy daily carry.

Is the Koolux X7 Fat Tyre Electric Bike easy to assemble?

The Koolux X7 Fat Tyre Electric Bike arrives mostly assembled. Final setup normally includes aligning and securing the handlebars, fitting the pedals and completing essential safety checks. Allow approximately 20–30 minutes, or select our professional assembly and PDI service.

Is the Koolux X7 Fat Tyre Electric Bike water resistant?

The Koolux X7 Fat Tyre Electric Bike is not fully waterproof. Avoid prolonged exposure to heavy rain, and never submerge or pressure wash the bike or its electrical components. After riding in wet conditions, wipe the bike dry and store it in a dry, sheltered location.

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Koolux X7 Fat Tyre Electric Bike

SKU: TS-10160 Barcode: 6048115790557

Motor

750W

Battery

36V 12.5AH

Speed

15.5 MPH

Range

54 MILES

Was ~~£1,299~~ £849.99 In stock

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Kryptonite U-Lock with 4 Foot Kryptoflex Cable Sold Secure Gold

£44.99

Six Peaks Adult Cycling Helmet

£19.99

Six Peaks USB Rechargeable Rear Bike Light

£12.95

Six Peaks 400 Lumen USB Rechargeable Front Bike Light

£19.95

Six Peaks Cycling Phone Holder Frame Bag | Black

£12.95

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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.

Here when you need us

Fault assessment, warranty guidance and help arranging eligible repairs or replacement parts.

Manufacturer warranty · Koolux

Manufacturer warranty period · 12 months against manufacturing defects.

Manufacturer cover · Confirmed production faults affecting the original frame and factory-installed electrical or mechanical components.

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? View road legal e-bikes .

Description

Quick Summary
The KOOLUX X7 is a robust folding e-bike built for serious riders. With a high-capacity 48 V 25 Ah battery, fat tyres, and hydraulic brakes, it offers long-distance, terrain-flexible riding with confidence and comfort.

Power & Range
Choose between a legal 250 W version or an unlocked 750 W version depending on your riding preference. The large battery provides long rides between charges.

Built for Any Terrain
Its 20″ fat tyres and front suspension deliver stability and comfort over rough surfaces, while hydraulic disc brakes offer dependable stopping power.

Smart & Practical Design
Easily fold and store the bike when not in use. The removable battery allows flexible charging locations, and the overall build supports up to 120 kg of rider weight.

Reliable Features
IP54-rated frame protects against splashes. The strong frame and hydraulic brakes add to the bike’s durability and safe, controlled riding experience.

This is a performance-focused electric bike for appropriate private-land riding. Beyond the headline motor output, the most useful things to consider are rider fit, how the bike handles on your intended terrain and how its braking and suspension equipment suits your experience.

Specifications

Collection	Electric Bikes
Brand	Koolux
Motor Power	750W
Battery	36V 12.5AH
Top Speed	15.5 MPH
Acceleration Method	Regular Pedalling + Pedal Assist + Throttle Acceleration
Max Range	54 Miles
Charging Time	7+ Hours

Shock Absorbers	Front
Wheel Size	20inch x 4.0 Fat Tyre
Brakes	Dual Mechanical Disc Brakes
Gears	7 Speed Shimano Gears
Bike Weight	27KG
Max Climb	15 degrees

Size & Rider Fit

Check rider measurements and sizing before you order.

Maximum load 150KG

More measurements & dimensions

Seat height: 80–105 cm
Deck size: Not applicable — bicycle frame
Built dimensions: 177 × 70 × 122 cm (L × W × H)
Box dimensions: 145 × 28 × 79 cm (L × W × H)

Fit guidance: 20 in fat-tyre frame with a broad 80–105 cm saddle adjustment range.

Sizes are a guide. Rider proportions, footwear and setup can affect fit.

A black electric tricycle with front and rear baskets, labeled KOOLX X7, featuring a 250W motor and 48V 25Ah battery. Text highlights UK shipping and a delivery time of 3-7 days.

Close-up of a KOOLUX electric bike showing its battery mounted below the seat, part of the rear wheel, and the pedal, with grass and trees in the background.

A black electric bicycle with a front basket and rear cargo rack is parked on grass near a tree and path in a park. The bike has thick tires and Koolertron branding on the frame.

What’s Included in the Box?

1 x Koolux X7 Fat Tyre Electric Bike

1 x Charger

2 x Keys

1 x Tool Kit

1 x User Manual

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.

Speak to our team0800 099 6187 Email for a quote