- 250W motor
- 624Wh battery
Electric bikeFat tyreFolding
EP-2 Boost Folding Electric Bike, 25km/h, 250W Motor, 55Nm Boost Power, 48V, 13Ah Battery, 20 Inch Fat Tyres Electric Bike
- 250W motor
- 624Wh battery
- 20″ fat tyre
- Free UK deliveryEstimated 3–7 business days after dispatch
- Dispatched in 1–2 business daysTracking number sent by email
- ReturnsUnused and boxed — see our Refund Policy
Listed at 250W, assist to 25 km/h — within the UK EAPC power and speed limits, so no licence, tax or insurance is needed to ride it on the road (riders must be 14+). GOV.UK e-bike rules
Questions about this bike? +44 7216 788723 · support@kolmaax.site
Spec dashboard
The numbers, at a glance
Read from the listing. Ranges are the manufacturer's stated figures: hills, wind, cold and higher assist levels shorten them.
The EP-2 Boost is a UK road-legal folding fat tyre electric bike engineered for all-terrain performance and daily commuting. Built around a 250W brushless rear hub motor delivering 55Nm of torque and powered by an advanced torque sensor, this e-bike provides smooth, natural pedal assistance that responds proportionally to your effort, no sudden surges, just confident, intelligent power whenever you need it. A dedicated Power-Boost Button gives you an instant shot of acceleration for steep climbs or fast getaways. Whether you’re navigating city traffic, grinding up hills, or exploring gravel trails at the weekend, the EP-2 Boost handles every condition with ease.
Long Range Removable Battery
The 48V 13Ah removable lithium-ion battery (624Wh) powers up to 120 km (75 miles) of range on a single charge in PAS Level 1, making the EP-2 Boost one of the longest-range folding electric bikes available at this price. The battery locks securely into the frame with a key and slides out in seconds for convenient home or office charging, no need to move the bike. With five adjustable pedal assist levels, you control exactly how much help you get on every ride. Most commuters will charge once or twice a week.
Fat Tyres and Front Suspension for Real-World Terrain
Mounted on 20×4.0-inch fat tyres paired with an adjustable front fork suspension, the EP-2 Boost absorbs potholes, gravel, cobblestones, and uneven surfaces that would shake apart a standard commuter or lightweight folder. The fat tyre and suspension combination delivers a noticeably smoother, more stable ride across the mixed terrain British roads are known for, from canal towpaths and gravel cut-throughs to potholed urban streets. Excellent grip on tarmac, sand, dirt, and wet surfaces means you’re not limited to ideal conditions.
Foldable Frame – Stores in Seconds
The robust aluminium alloy folding frame collapses to a compact 99 × 55 × 75 cm in three simple steps, small enough for a hallway, a car boot, or beside a desk. Despite its folding design, the frame is built to support a maximum load of 150 kg (330 lbs), making the EP-2 Boost a genuinely practical choice for adults carrying bags, groceries, or work equipment. Assembly straight out of the box takes just 20–30 minutes.
Shimano 7-Speed Gearing and Disc Brakes
Shimano 7-speed precision gearing adapts smoothly across flat roads, rolling hills, and steep gradients, find your ideal cadence in any riding condition. The 180mm front and rear mechanical disc brakes deliver strong, reliable stopping power in all weather, with shorter braking distances and consistent performance on wet descents or sharp urban stops. Automatic LED brake lights activate the moment either lever is squeezed, improving your visibility to other road users.
Safety, Visibility and Everyday Practicality
Integrated LED front lighting and automatic rear and brake lights keep you visible in low-light and night conditions. The colour LCD display shows real-time speed, battery level, pedal assist mode, and trip distance at a glance. A rear rack rated to 25 kg handles daily loads with ease groceries, a work bag, deliveries. Front and rear mudguards come as standard, keeping you clean on wet roads. A kickstand and adjustable saddle (84–102 cm) complete the practical package, with the bike suited to riders between 5’4″ and 6’2″ (165–190 cm).
Fully UK Road Legal
The EP-2 Boost is a fully UK and EU-compliant EPAC pedelec – 250W continuous rated motor, pedal-assist only, maximum assisted speed of 25 km/h (15.5 mph). No licence, insurance, or registration is required for use on UK public roads and cycle paths. Eligible for Cycle to Work scheme purchases.
KEY FEATURES
- 250W brushless rear hub motor – 55Nm torque
- Advanced torque sensor for smooth, proportional pedal assist
- Power-Boost Button for instant acceleration on steep hills
- 48V 13Ah removable lithium-ion battery – 624Wh
- Up to 120 km range (PAS 1 / flat road / 75 kg rider)
- 5 pedal assist levels
- Max assisted speed: 25 km/h – fully UK/EU road legal
- 20×4.0-inch all-terrain fat tyres
- Adjustable front fork suspension
- Shimano 7-speed precision gearing
- 180mm front and rear mechanical disc brakes
- Foldable aluminium alloy frame – folds to 99 × 55 × 75 cm
- Max payload: 150 kg (330 lbs)
- Rear rack capacity: 25 kg
- Colour LCD display: speed, battery, PAS mode, distance
- Automatic LED rear and brake lights + LED front light
- Front and rear mudguards included
- Adjustable saddle height: 84–102 cm
- Suitable rider height: 165–190 cm (5’4″–6’2″)
- Charging time: approx. 6.5 hours
- Bike weight: 30 kg (66 lbs)
- Cycle to Work scheme eligible
- Warranty: 2 years
FULL TECHNICAL SPECIFICATIONS
| Specification | Detail |
|---|---|
| Motor | 250W Brushless Rear Hub Motor |
| Torque | 55 Nm |
| Assist System | Torque Sensor + 5-Level PAS + Power-Boost Button |
| Max Assisted Speed | 25 km/h (15.5 mph) |
| Battery | 48V 13Ah Removable Lithium-Ion |
| Capacity | 624Wh |
| Range | Up to 120 km (PAS 1 / flat / 75 kg) |
| Electric Mode Range | Up to 40 km |
| Charging Time | Approx. 6.5 hours |
| Charger Output | 2A |
| Tyres | 20″ × 4.0″ Fat Tyres |
| Suspension | Adjustable Front Fork |
| Gears | Shimano 7-Speed |
| Brakes | 180mm Front & Rear Mechanical Disc |
| Frame Material | Aluminium Alloy + Iron |
| Frame Style | Folding |
| Folded Dimensions (L×W×H) | 99 × 55 × 75 cm |
| Unfolded Length | 170 cm |
| Wheelbase | 113.5 cm |
| Reach | 46 cm |
| Standover Height | 69 cm |
| Min Saddle Height | 86 cm |
| Max Saddle Height | 102 cm |
| Min Handlebar Height | 120 cm |
| Max Handlebar Height | 130 cm |
| Bike Weight | 30 kg (66 lbs) |
| Gross (Packaged) Weight | 37.8 kg (83 lbs) |
| Max Load Capacity | 150 kg (330 lbs) |
| Rear Rack Capacity | 25 kg |
| Max Climbing Angle | 10° |
| Recommended Rider Height | 165–190 cm (5’4″–6’2″) |
| Display | Colour LCD (speed, battery, PAS mode, distance) |
| Lighting | LED front light + automatic rear/brake light |
| Package Dimensions (L×W×H) | 144 × 32 × 66 cm |
| Cycle to Work Eligible | Yes |
| Warranty | 2 Years |
IN THE BOX
- EP-2 Boost Folding Electric Bike (largely pre-assembled)
- 48V 13Ah Lithium-Ion Battery
- Battery Charger (2A)
- Front & Rear Mudguards
- Rear Rack
- Kickstand
- Pedals (×2)
- Assembly Tools
- User Manual










Orders are processed within 1–2 business days (Monday to Friday); orders placed at weekends or on public holidays are processed the next business day. Estimated delivery is 3–7 business days within the United Kingdom.
Standard shipping is free on all orders, with no additional shipping fees at checkout.
Once your order ships you'll receive a confirmation email with a tracking number. Read the full Shipping Policy.
To start a return, email support@kolmaax.site with your full name, order number and reason for return (with photos if the item is damaged, defective or incorrect). Items must be unused, in their original packaging and complete with all accessories and parts.
If an item arrives damaged, defective or incorrect, contact us within 48 hours of delivery. Read the full Refund Policy.
Keep comparing
You may also like
- 48V battery
- 20″ fat tyre
Electric Bicycle with Removable 48V Battery, Dual Suspension, 7-Speed Gears, 20-Inch Fat Tires, LCD Display
- 250W motor
- 374Wh battery
Electric Bike for Adults, Fat Tire Electric Mountain Bike with 250W Motor, 36V 10.4Ah Battery,
- 250W motor
- 749Wh battery
- 20″ fat tyre
T2 Electric Bike, 20 Inch Fat Tyre, 250W Motor, 48V 15.6Ah Removable Battery, Adult All-Terrain E-Bike
- 250W motor
- 960Wh battery
48V 20Ah 960Wh Fat Tyre E-Bike for Adults, 250W Brushless Motor, Removable Battery, Dual Suspension & 7-Speed
- 250W motor
- 576Wh battery
- 75 km range
- 20″ fat tyre
F20 250W Folding Electric Bike for Adults, 20" Fat Tyre eBike, 36V 16Ah Battery, Upto 25 km/h, Up to 75 km Range, Shimano 7-Speed - Gray
- 52V battery
- 24″ fat tyre
Electric Bicycle with Dual Assist, Removable 52V Battery, 7-Speed Gears, 24-Inch Fat Tires
- 48V battery
- 20″ wheels







