How fast can the Koolux X12 Electric Bike go?

The listed top speed is 28 MPH. Real-world speed varies with rider weight, terrain, battery level and which speed/assist mode you’re using.

Is the Koolux X12 Electric Bike road legal in the UK?

Many e-bikes are supplied with a UK-compliant assist setting (25 km/h / 15.5 mph). If you use higher-speed or higher-power modes on public roads, it may be treated as a motor vehicle and need registration, tax and insurance. Always ride to the current rules.

Het Is Waterbestendig Met Een Ip65-Classificatie, Maar Niet Waterdicht. Je E-Bike Kan Op Korte Termijn Nat Worden En In De Regen Staan, Maar Langdurige Blootstelling Kan Ernstige Problemen Veroorzaken.

Is the Koolux X12 water resistant?

The Koolux X12 is water-resistant and suitable for riding in light to moderate rain. It is not fully waterproof and should not be submerged. Short term, your product can get a little wet and be in the rain, but any long-term exposure can cause serious problems.

Is the Koolux X12 Electric Bike road legal?

This model is designed for off-road/private land use and is not intended for public roads, cycle lanes, or pavements. It does not meet UK road-legal e-bike requirements (including the 250W limit), so it shouldn’t be used as an EAPC on public highways. Please ride only on private land and always with the landowner’s permission.

Koolux X12 Electric Bike

Name: Koolux X12 Electric Bike
Brand: KOOLUX
SKU: KOOLUX-X12-GRAY
Price: 1177.95 GBP
Availability: OutOfStock
Rating: 4.75 (4 reviews)

Motor

500W

Battery

Speed

45 KM/H

Range

55–121 KM

€1.294,95 €1.177,95

Sold out

Pay in 3 €392,65×3

Pay in 4 €294,49×4

Pay monthly €98,16/mo

Colour:Gray

Gray

Product variants:

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Out of stock

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Returns

30-day returns on unused items
Used items cannot be returned for change of mind

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Collect from store

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We will help arrange a suitable collection time.

Warranty & Price Promise Cover, exclusions and matching policy

Electric Bike Warranty

Cover varies by brand and model. See our warranty page for full terms.
Manufacturer cover usually applies to defects under normal use.
Batteries, chargers, chains, brake pads, tyres and tubes may have limited cover.
Wear, punctures, damage, water ingress and mods are usually excluded.

Warranty Page

Price Promise

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Description

Powerful 500W brushless rear motor for Confident Riding
The KOOLUX X12 features a high-efficiency 500W brushless rear motor, delivering smooth acceleration and reliable torque for hills, city riding, and mixed terrain.

Long-Range Lithium-ion battery for Everyday Adventures
Designed to go the distance, the battery system provides a real-world range of up to 55–120 km depending on riding mode, terrain, and rider weight.

Comfort-Focused Design for Stability and Control
Wide tyres and a well-balanced frame help absorb road vibrations and uneven surfaces, keeping rides comfortable and confidence-inspiring.

Smart Display and Assist System
Ride with full control using a clear digital display showing speed, battery level, and distance. Multiple pedal-assist levels help tailor power delivery to your riding style.

Road-Legal Configuration
Supplied in a 25 km/h (road legal setting) configuration for UK compliance. Always follow local e-bike regulations.