Cyrusher Asuka Electric Bike 250W 48V 17.5AH
Availability Notification
We'll notify you as soon as the item is back in stock.

Cyrusher Asuka Electric Bike 250W 48V 17.5AH
Color: Blue

This 250W E-Bike is Fully Compliant With UK Road Regulations
Product Specifications
Brand: | Cyrusher |
Bike Type: | Mountain, City & Commuter |
Motor Power: | 250W |
Battery Ah: | 17.5Ah |
Battery Voltage: | 48V |
Maximum Speed: | 15.5MPH |
Maximum Range: | 50+ Miles |
Charging Time: | 6+ Hours |
Shock Absorbers: | Front |
Wheel Size: | 27inch |
Brakes: | Front & Rear Disc Brakes |
Gears: | 8 Speed Shimano Gears |
Bike Weight: | 28KG |
Max Climb: | 20 degrees |
Maximum Load: | 120KG |
Smooth Power Delivery
Equipped with a 250 W brushless rear hub motor, the Asuka delivers smooth pedal assist up to 25 km/h, with unlocking options available for private terrain riding. Multiple pedal-assist levels and Shimano gearing offer flexibility across diverse riding conditions.
Comfort & Control
The 27.5-inch wheels combined with knobby mountain tyres provide excellent traction and stability on various surfaces. A front suspension fork softens trail bumps, while powerful mechanical disc brakes front and rear ensure confident stopping power in all conditions.
Smart Battery System
A 48 V 17.5 Ah lithium-ion battery gives the Asuka up to 100 km of riding range per charge, ideal for long rides and weekend adventures. The battery is fully removable and lockable for easy, secure charging.
Tech You Can Trust
An easy-to-read LCD display shows essential ride stats—speed, PAS level, battery life, and trip distance. Integrated front and rear LED lights increase visibility and safety on dawn, dusk, or night rides.
Built for Everyday & Trail Use
The sturdy aluminium frame, strong load capacity, and all-terrain capabilities make the Asuka a reliable companion for both off-road exploration and urban commuting. Its balance of power, comfort, and endurance makes it a versatile choice for any rider.
Please note that the use of electric scooters and electric bikes in the UK is subject to specific regulations.
Electric Scooters:
Currently, privately owned electric scooters are not permitted on public roads, pavements, or cycle lanes. They are only legal on private land with the landowner’s permission.
Riders are advised to familiarize themselves with local laws and guidelines to avoid potential fines or penalties.
Electric Bikes (E-Bikes):
Electric bikes that meet UK government criteria (pedal-assisted, motor limited to 250W, and a maximum speed of 15.5 mph) are classified as Electrically Assisted Pedal Cycles (EAPCs). These can be used on public roads and cycle lanes without a license, tax, or insurance.
Riders must be at least 14 years old to legally ride an EAPC in the UK.
By purchasing and using these products, customers acknowledge their responsibility to comply with all applicable laws and regulations. Our company cannot be held liable for misuse or legal consequences resulting from non-compliance.
For more information, please refer to the UK Government’s official guidelines.
The customer assumes all liability and risk associated with the use of electric scooter or electric bike products and holds TrailSurge and its owners free from any liability caused by their use. Certified helmets and full protective gears must be worn at all times for your own safety.




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.
Frequently Asked Questions
Authorised Brands





















