Koolux X16 Folding Electric Bike
SKU: T94175
SPEED15.5 Mph
RANGE43 Miles
MOTOR250W
BATTERY15.6Ah
CHARGING5.5 Hours
WEIGHT68 lbs
Adjustable Cycle Helmet£38.99
Front and Rear Light Set£44.99
This Model Is Fully Compliant With UK Road Regulations
This bike is built to comply with UK Electrically Assisted Pedal Cycle (EAPC) regulations, meaning it can be used on public roads and cycle paths without registration, tax, or a licence. Motor assistance is limited to 250W and cuts off at 15.5 mph (25 km/h).
See UK LegislationThis one carries 749 Wh of battery. The maker quotes 43 mi; in mixed riding with some hills, expect nearer 32 mi. A full charge costs about £0.21. Across a year that is roughly £979.00 less than making the same journeys by car, so the bike pays for itself in about 10 months. Everything here is worked out from this bike's own specification. Estimates, not promises: the assumptions are printed underneath.
Range you can expect
| Low assist, flat roads | 43 mi |
|---|---|
| Mixed riding, some hills | 32 mi |
| Full assist, loaded or hilly | 24 mi |
| Riding time on a charge | 2 h 46 min |
What it costs to run
| A full charge | £0.21 |
|---|---|
| Every 100 miles | £0.48 |
| Electricity for a year | £11.00 |
| The same year by car | £990.00 |
| You keep | £979.00 |
| Pays for itself in | 10 months |
Worked out from the specification
| Battery energy | 749 Wh |
|---|---|
| Energy per mile | 17.4 Wh |
| Charger output | 2.8 A |
| Power to weight | 8.1 W/kg |
| You can carry | 265 lb |
Based on £0.245 per kWh, £0.45 per mile to run a small car, and 2,200 miles a year. Charging is costed at the socket, not at the battery.
Your everyday folding e-bike for city life
The Koolux X16 is built for UK riders who need a reliable, compact electric bike for commuting, errands, and weekend rides. Its folding frame fits neatly into flats, offices, car boots, or campers, while the 250W motor and 48V 15.6Ah battery deliver up to 93 miles of assisted range. With 20-inch fat tyres and front and rear disc brakes, it handles city streets and light trails with confidence—making it a practical choice for anyone who wants power without the bulk.
A motor that makes hills feel easier
The 250W motor gives you steady, reliable assistance on climbs and through stop-start traffic, so you arrive less tired. It supports riders up to 120kg and tackles inclines up to 20°, which is handy for hilly UK towns and countryside lanes. You stay in control with a top assisted speed of 15.5 mph, in line with UK e-bike regulations.
Go further on a single charge
The removable 48V 15.6Ah lithium-ion battery provides up to 93 miles of range, depending on terrain, rider weight, and assist level. That’s enough for a week of commuting or a long weekend ride without daily charging. Recharging takes around 5.5 hours, and because the battery is removable, you can charge it indoors or at your desk.
Fat tyres for a smoother, more stable ride
The 20×3.0 inch tyres absorb bumps and vibrations from uneven roads, giving you better grip and comfort than standard commuter tyres. They’re especially useful on wet surfaces, rough pavement, and light gravel paths. Combined with the bike’s sturdy frame, they help you feel balanced and confident, even when carrying shopping or a backpack.
Reliable stopping power in all weather
Front and rear disc brakes give you strong, predictable braking in dry or wet conditions—essential for UK riding. Whether you’re slowing for traffic lights or stopping suddenly on a rainy day, the brakes respond quickly. This makes the Koolux X16 a safer choice for daily commuting and urban riding.
Smart connectivity for a modern ride
The Koolux X16 connects to your smartphone, letting you unlock the bike and view ride information like speed and battery level. This adds convenience and security, especially if you park in shared spaces. The controls are straightforward, so you can focus on the road ahead.
Folds small, rides big
The quick-folding frame makes the Koolux X16 easy to store in tight spaces or transport in a car boot. It’s ideal for multi-mode commutes, like cycling to the station and folding it on the train. Despite its compact size, it supports up to 120kg and is built to handle daily use, with an IP54 rating against splashes and dust.
- BRAND
- KOOLUX
- CATEGORY
- Folding
- MOTOR POWER
- 250W
- RANGE
- 43 Miles
- SPEED
- 15.5 Mph
- BATTERY
- 15.6Ah
- WEIGHT
- 68 lbs
- CHARGING TIME
- 5.5 Hours
- BRAKE SYSTEM
- Front & Rear Disc Brake
- FRAME MATERIAL
- N/A
- MAXIMUM LOAD
- 265 lbs
- INPUT VOLTAGE
- 48V
- TIRE SIZE
- 20 inch
- TORQUE
- N/A
The Koolux X16 Folding Electric Bike states 250W, 43 Miles and 15.5 Mph, and below it is set against the DYU A1F Electric Folding Bike. Every figure the two disagree on is marked. Choose a different bike to compare it with whichever one you are also considering.
7 of 10 specifications differ. View DYU A1F Electric Folding Bike
- Are the electric bikes brand new?
- Yes. All electric bikes sold by BikTron are brand new, factory-sealed, and sourced directly from authorised manufacturers and official distributors.
- How do I choose the right electric bike for me?
- Pick a bike based on how you plan to ride. City bikes are great for commuting, folding bikes work well if you need compact storage, mountain bikes handle hills and mixed terrain, and cargo bikes are ideal for carrying shopping or loads. If you are not sure, our Bike Quiz can help.
- Are the batteries original and certified?
- Yes. Every electric bike battery is brand new and original from the manufacturer, with full safety certification and performance testing.
- Are the bikes tested before shipping?
- Yes. Each e-bike goes through a quality check before dispatch, covering electronics, brakes, motor response, and battery performance.
- Do electric bikes come with a warranty?
- Yes. All electric bikes from BikTron include a manufacturer warranty. Duration depends on the brand and model. Most bikes include a 12-month warranty as standard.
- How long does delivery take?
- Standard UK delivery usually takes 2 to 7 business days. Remote areas may take a little longer. You will receive a tracking link by email once your order is dispatched.
- Which payment methods do you accept?
- We accept Visa, Mastercard, PayPal, Apple Pay, Google Pay, and Klarna buy-now-pay-later. All payments are processed securely.
- Can I return my electric bike?
- Yes. You can ride the bike and still return it. Tell us within 30 days of delivery and we book the courier and collect it from your door. Contact us first and we will guide you through the process.
- Do the bikes need assembly?
- Most electric bikes arrive 85 to 90 per cent pre-assembled. You will usually need to attach the handlebars, pedals, and adjust the seat. A basic tool set is often included.
- Are BikTron electric bikes legal to ride in the UK?
- Yes. All bikes sold by BikTron that meet UK EAPC rules (250W motor, max 15.5 mph assisted speed, pedal-assisted only) are fully road-legal. You do not need a licence, tax, or insurance to ride them on public roads. Riders must be at least 14 years old.
- What about the electric scooters?
- Those are different, and the law treats them differently. A privately owned e-scooter cannot legally be ridden on a public road, pavement or cycle lane in the UK, whoever sold it. We sell ours for private land use only, with the landowner's permission, and every scooter product page says so. If you want something you can ride to work, choose an electric bike.
Secure checkout and fast UK delivery on every order.
- Free standard UK delivery on most bikes — 2 to 7 business days
- Express delivery may be available on request
- Full tracking included with every order
- Pay securely with Visa, Mastercard, PayPal, Apple Pay, Google Pay, or Klarna
- 0% finance available through Klarna at checkout
Before you order:
- Delivery is to UK mainland addresses — some remote areas may have a small surcharge
- Most bikes arrive 85–90% pre-assembled and include basic tools for setup
- If you are unsure about sizing or specs, contact us before you buy
Full details at Payment & Shipping.
Simple and fair terms so you can buy with confidence.
- 30-day return window — if the bike is not right for you, send it back
- Ride it. It needs to come back clean, undamaged and complete, with the charger, tools and manual
- A refund or replacement is issued after we receive and check the return
Please note:
- For a change of mind we book the collection and deduct its cost from your refund, and we tell you the amount before we book it
- If we sent the wrong item or it arrived faulty, we cover return shipping in full
- All bikes include a 12-month manufacturer warranty as standard
Full details at Returns & Refunds and Warranty.
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