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Trail Surge UK supplies high-quality products. Every item includes a 12-month manufacturer warranty as standard. Warranty details
| Brand | Koolux |
|---|---|
| Bike Type | Fat Tyre, City & Commuter, Delivery & Cargo |
| Motor Power | 250W |
| Maximum Speed | 15.5MPH |
| Maximum Range | 35+ Miles |
| Charging Time | 7+ Hours |
| Shock Absorbers | Front |
| Wheel Size | 20inch x 4.0 Fat Tyre |
| Brakes | Front & Rear Hydraulic |
| Gears | 7 Speed Shimano Gears |
| Bike Weight | 27KG |
| Max Climb | 15 degrees |
| Maximum Load | 120KG |
Quick Summary
The KOOLUX BK10S combines legal-class performance with portability. With its 250 W motor, 48 V battery, fat tyres, and foldable frame, it's ideal for commuting and light off‑road adventures.
Power & Range
The 250 W motor with ~60 Nm torque gives solid hill climbing and smooth acceleration. The battery supports up to approximately 90 km per charge in assist modes.
Comfort & Safety
Ride smoothly on fat tyres and front suspension. Hydraulic disc brakes offer reliable stopping—even in wet conditions.
Smart Design Features
Folds compactly for easy storage or transport. The display shows speed, battery level, and assist mode. Battery is easily removable and lockable.
Built for Everyday Use
Equipped with front/rear LED lights, mudguards, Shimano 7-speed gearing, and a stable, lightweight frame. Ready for daily commuting or weekend outings.
This high‑capacity 48 V 13 Ah lithium battery delivers an impressive range of 35‑90 km, giving you the freedom to ride further. The detachable battery compartment includes a safety lock so you can remove it for charging without worry.
With a removable 48 V 12 Ah battery rated at 576 Wh, you can enjoy long rides and quick recharging. The 4 A fast‑charging system powers up in hours and ensures a maximum range of around 70 km.
A built‑in high‑strength steel shock absorber provides excellent cushioning and lubrication. The high‑pressure suspension fork smooths out bumps and potholes, giving you more control and comfort.
Large 27.5×2.2‑inch tyres with a bump tread pattern provide superior grip on bumpy roads and rough terrain. Ride safer with enhanced ground contact and reduced skidding.Featuring a 48 V 13 Ah high‑capacity battery cell with smart‑chip technology, this system reduces energy consumption and extends your riding range. The 5‑7 hour charging time and 25‑35 km range per charge keep you moving longer.
1X Main Product (Mostly Built)
1X Charger
1X Toolkit
1X Instructions & User Guide
Your product will be delivered in 3-5 Working Days from order date. We will dispatch your product and give you tracking details usually within 2 days of ordering. We use a panel of delivery companies such as DPD, Parcelforce, DX, and BJS Home Delivery. Unfortunately we do not ship to Northern Ireland or British Isles.
