Cyrusher Aura Step-Through Electric Bike
SKU: H38728In Stock
SPEED15.5 Mph
RANGE60 Miles
MOTOR250W
BATTERY15Ah
CHARGING7-8 Hours
WEIGHT76 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 780 Wh of battery. The maker quotes 60 mi; in mixed riding with some hills, expect nearer 45 mi. A full charge costs about £0.22. Across a year that is roughly £982.00 less than making the same journeys by car, so the bike pays for itself in about 15 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 | 60 mi |
|---|---|
| Mixed riding, some hills | 45 mi |
| Full assist, loaded or hilly | 33 mi |
| Riding time on a charge | 3 h 52 min |
What it costs to run
| A full charge | £0.22 |
|---|---|
| Every 100 miles | £0.36 |
| Electricity for a year | £8.00 |
| The same year by car | £990.00 |
| You keep | £982.00 |
| Pays for itself in | 15 months |
Worked out from the specification
| Battery energy | 780 Wh |
|---|---|
| Energy per mile | 13.0 Wh |
| Charger output | 2.1 A |
| Power to weight | 7.3 W/kg |
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.
Seven hundred and eighty watt hours, eighty newton metres, and a 42 cm step over
The Cyrusher Aura runs a 52 volt system with Samsung 21700 cells totalling 780 Wh, and 80 Nm of torque, at £1,164 from £1,799.
Road legal at 250W: no licence, no tax, no insurance, nothing to register.
How it differs from the Zenith
We also list the Cyrusher Zenith at the same price, on the same 52 volt system with the same 80 newton metres. The difference is the frame.
The Zenith has a crossbar. This one drops to a 42 cm standover, which is as low as anything we list, so you step through rather than lift a leg over anything. If getting on and off easily matters, this is the one; if it does not, the Zenith is the same bike with a conventional top tube.
Fifty two volts, and Samsung 21700 cells
Two specifications that usually sit on bikes costing twice this. The 21700 is the larger, newer cylindrical cell, and 52 volts moves the same power at lower current, which means less heat and less sag when the motor is working.
Seven hundred and eighty watt hours is a large pack by any measure. The panel below turns it into energy per mile and gives you the assist bands.
Eighty newton metres from a 250W motor
Exceptional for a road legal bike, and torque is what you feel: pulling away, starting on a hill, moving off with a loaded rack.
On a seventy six pound fat tyre bike with a step-through frame, it is the difference between a motor that helps and a motor that apologises.
A torque sensor and a cadence sensor together
Most bikes have one. A cadence sensor knows the pedals are turning; a torque sensor knows how hard you are pushing.
Both together means the motor arrives immediately and then scales with your effort, which on a heavy step-through frame is what makes it feel like a bicycle rather than a machine you are operating.
Logan hydraulic brakes with two piston calipers
Two pistons rather than one, which spreads the pad more evenly and gives more braking for the same lever effort.
On a bike this heavy on twenty six inch fat tyres, that is the specification you notice going downhill rather than uphill.
Twenty six inch fat tyres, which is the better size
Most fat bikes use twenty inch wheels. Twenty six rolls over an obstacle instead of climbing it, and holds speed across rough ground rather than bleeding it away.
- Chaoyang 26 by 4 inch tyres
- A coil sprung fork at the front
- An integrated aluminium bar and stem
- Shimano seven speed on a single chainring
The geometry, which is what a step-through is bought for
Standover 42 cm, seat from 82 to 102.5 cm, a 68.5 degree head angle and a 121 cm wheelbase.
A slack head angle and a long wheelbase make a bike stable rather than quick, which is exactly right for a heavy bike carrying a load at low speed. The saddle range covers most adults without changing the post.
Seven to eight hours on charge
A two amp charger on 780 watt hours, so this is an overnight job. The pack alone is 4.5 kg and comes off the frame to charge indoors.
Top it up rather than running it flat.
Before the first ride
It arrives largely assembled.
- Fit the front wheel, handlebar and pedals
- Bed the hydraulic brakes in at walking pace before a first descent
- Set tyre pressure: soft for grip, firmer for range on tarmac
- Set the saddle between 82 cm and 102.5 cm
- Charge to full once before the first long ride
The payload is not published
Cyrusher do not state a maximum load for this model, so the table below leaves that row out rather than filling it with a guess. On a step-through frame that is the row people most want, because the dropped top tube is the part carrying the load.
At seventy six pounds it is also a bike you wheel rather than carry. Ask us before you order and we will chase the figure from the supplier.
Buy it for the 52 volt system, the 780 watt hour pack and a step over as low as any we list. Nothing else in our range puts those three together at this price.
- BRAND
- Cyrusher
- CATEGORY
- Fat Tire
- MOTOR POWER
- 250W
- RANGE
- 60 Miles
- SPEED
- 15.5 Mph
- BATTERY
- 15Ah
- WEIGHT
- 76 lbs
- CHARGING TIME
- 7-8 Hours
- BRAKE SYSTEM
- Hydraulic Disc Brake
- FRAME MATERIAL
- Aluminium
- MAXIMUM LOAD
- N/A
- INPUT VOLTAGE
- 52V
- TIRE SIZE
- 26 inch
- TORQUE
- 80 Nm
The Cyrusher Aura Step-Through Electric Bike states 250W, 60 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.
9 of 11 specifications differ. View DYU A1F Electric Folding Bike
- What are the benefits of the step-through frame?
- The step-through design makes mounting and dismounting easier while improving rider comfort.
- Is the CYRUSHER Aura suitable for daily commuting?
- Yes, it is designed for comfortable and efficient urban travel.
- Does the CYRUSHER Aura offer long battery range?
- Yes, it is built for extended riding distance and dependable daily performance.
- Is the CYRUSHER Aura comfortable for longer rides?
- Yes, its ergonomic design and smooth handling help ensure a comfortable riding experience.
- 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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Helpful reading
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