Built, safety checked and delivered ready to ride by our team.
Usually 5–7 working days
£99.99
Optional service
Built & Delivered Ready To Ride
Select this if you want your electric bike assembled, inspected and prepared by TrailSurge before delivery. Once completed, it will be delivered ready to ride by our team.
Handlebar and cockpit setupBrake setup and adjustmentGear indexing and drivetrain checkTyre pressure and wheel checkPedal and key bolt checkBattery, display and PAS checkLights and controls checkFinal PDI safety inspection
Once completed, your electric bike is secured for delivery and delivered ready to ride by our team. Please allow around 5–7 working days.
Free Premium Delivery
Get it between
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3-5 working days
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Home Delivery
Standard 3–5 working days, with Next Day available on selected items
Delivery options
Choose your available delivery option at checkout. Options can vary depending on the product, stock location, courier service and delivery postcode.
Standard Home Delivery
3–5 working days
Our standard tracked home delivery service for most UK mainland orders.
Next Day DeliverySelected items
Available at checkout on selected in-stock items only. If Next Day Delivery is available for your order, it will appear before payment.
Trusted delivery partners
Tracking details are sent once your order has been dispatched
Some large, heavy or specialist items may arrive with a dedicated courier
Remote areas, Highlands, islands and non-mainland postcodes may require extra time or a delivery surcharge
Returns
30-day returns on unused items
Used items cannot be returned for change of mind
Click & CollectStore collection and location details
Collect from store
Choose collection at checkout
We will confirm when your order is ready
Please wait for confirmation before travelling
We will help arrange a suitable collection time.
Warranty & Price PromiseCover, 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.
Payment OptionsFlexible payment options from trusted providers
PayPalCREDIT
Pay with PayPal Credit
Representative APR (variable) 23.9%
T&C's apply.
clearpay
Pay in 4 with Clearpay
4 interest free payments of £0.00
T&C's apply.
Klarna.
Spread the cost with Klarna
3 monthly payments of £0.00
T&C's apply.
Description
Smooth Power Delivery Equipped with a 250W 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.
The Cyrusher Asuka Electric Bike 250W 48V 17.5Ah is a trekking-style step-through that focuses on efficiency and range. It pairs everyday practicality with a bigger-than-average battery, making it ideal for riders who commute far or ride in colder, battery-draining weather.
48V 17.5Ah Battery for 50+ Mile Real-World Range
Your Cyrusher Asuka Electric Bike 250W 48V 17.5Ah stock uses a 48V 17.5Ah battery rated for 50+ miles of range in favourable conditions. That extra buffer is perfect for winter commuting, hilly routes or riders who don’t want to live at the charger.
700C Trekking Wheels, Air Fork and Hydraulic Disc Brakes
Large 700C wheels with relatively fast tyres, an air-suspension fork and hydraulic disc brakes make the Cyrusher Asuka Electric Bike 250W 48V 17.5Ah a seriously capable commuter. It rolls quickly on tarmac yet has enough comfort and control for broken surfaces and towpaths.
What inside the box?
1X Cyrusher Asuka Electric Bike
1X Charger
2X Keys
1X Assembly Tools
1X Assembly User Manual
Assembly Information
Watch the assembly guide below before first setup.
The Cyrusher Asuka comes mostly assembled and only minor things need to be assembled. This should not take longer than 20-30 minutes to do.
The Cyrusher Asuka 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.
Yes — this model is road legal in the UK. It’s classed as an EAPC (electric assist bicycle), so it can be ridden on public roads and cycle paths like a standard bike, without any issues from the police.
I use it for a mix of roads and rougher paths and it handles both brilliantly. Comfortable, capable and feels premium. Five stars from me.
I
Isla Wright
Fast-feeling, stable and fun
The Asuka has a really confidence-inspiring ride. It feels stable, responsive and comfortable, and the assist makes hills far less of a chore. Absolutely loving it.