Cyrusher Trident Fat Tire Electric Mountain Bike
SKU: Q36741
SPEED15.5 Mph
RANGE75 Miles
MOTOR250W
BATTERY20Ah
CHARGING5 Hours
WEIGHT96 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 bike is built for riders 5'7"-6'7" (170-200 cm).
Kept in this browser only.
The manufacturer's figures, not ours.
This one carries 1,040 Wh of battery. The maker quotes 75 mi; in mixed riding with some hills, expect nearer 56 mi. A full charge costs about £0.29. Across a year that is roughly £982.00 less than making the same journeys by car, so the bike pays for itself in about 57 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 | 75 mi |
|---|---|
| Mixed riding, some hills | 56 mi |
| Full assist, loaded or hilly | 41 mi |
| Riding time on a charge | 4 h 50 min |
What it costs to run
| A full charge | £0.29 |
|---|---|
| Every 100 miles | £0.39 |
| Electricity for a year | £8.00 |
| The same year by car | £990.00 |
| You keep | £982.00 |
| Pays for itself in | 57 months |
Worked out from the specification
| Battery energy | 1,040 Wh |
|---|---|
| Energy per mile | 13.9 Wh |
| Charger output | 4.0 A |
| Power to weight | 5.7 W/kg |
| You can carry | 440 lb |
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.
160 newton metres, 440 lbs, and a 52V system
The Cyrusher Trident makes 160 Nm of torque, carries 440 lbs and runs a 52V battery, at £4,589.
250W and 15.5 mph: it meets the EAPC rules, so there is no licence, no tax and no registration.
160 newton metres from a legal motor
That is the highest torque figure in this catalogue, and it comes from a motor that stays within the rules.
- Torque is what climbs a steep hill without a run-up
- It is also what moves a loaded bike away from a standstill
- Rated power says nothing about either
- And this is more than double what most 250W bikes here offer
Fifty-two volts rather than forty-eight
Higher voltage means fewer amps for the same power, so less heat in the controller and the cabling.
Twenty amp hours at 52V is over a kilowatt hour, and Cyrusher claims 75 miles: better range than 85% of our catalogue. Five hours for a full charge.
440 lbs of payload
Two hundred kilogrammes, more than 97% of what we sell: rider, kit and anything on the bike, together.
On a full-suspension frame that figure is harder to achieve than on a rigid one, because the linkage carries it too. Subtract your own weight before you order.
Full suspension on 26-inch fat tyres
Both ends of the bike work, on mountain-bike-sized wheels with four inches of tyre.
A big wheel rolls over an obstacle instead of stopping against it. With suspension at both ends and a soft tyre, that is three stages between you and the ground.
Hydraulic brakes, and at 96 lbs they are necessary
Hydraulic rather than cable, on an aluminium frame.
One finger is enough, they do not fade on a long descent, and they keep their bite in the wet. On a 96 lb bike loaded to 440, cable discs would be the wrong economy.
What we know about this bike, and what we do not
This model reached our catalogue before we started archiving our suppliers' own spec sheets, so there is no original table for us to check ours against.
What the table below shows comes from our own record and nothing has been added to it on a guess. At £4,589 this is the most expensive bike we sell, so if a specific measurement decides your purchase, write to us before you order and we will measure it rather than guess.
Before the first ride, and who it is for
It arrives nearly built and weighs 96 lbs. Unpacking is a two-person job, without exception.
- Fit the front wheel and the handlebars with two people
- Bed the hydraulic brakes in at walking pace before the first descent
- Set both suspension units to your weight: that is the first job
- Run the tyres soft for grip, firmer for range
- Allow five hours for the first charge
Buy it for the torque and the payload. A legal 250W bike that pulls 160 Nm and carries 440 lbs on full suspension is what this money is for, and nothing else here does all three.
- BRAND
- Cyrusher
- CATEGORY
- Fat Tire
- MOTOR POWER
- 250W
- RANGE
- 75 Miles
- SPEED
- 15.5 Mph
- BATTERY
- 20Ah
- WEIGHT
- 96 lbs
- CHARGING TIME
- 5 Hours
- BRAKE SYSTEM
- Hydraulic Disc
- FRAME MATERIAL
- Aluminum
- MAXIMUM LOAD
- 440 lbs
- INPUT VOLTAGE
- 52V
- TIRE SIZE
- 26 inch
- TORQUE
- 160 Nm
The Cyrusher Trident Fat Tire Electric Mountain Bike states 250W, 75 Miles and 15.5 Mph, and below it is set against the DYU FF500 20 Inch Fat Tire Folding Electric Bike. Every figure the two disagree on is marked. Choose a different bike to compare it with whichever one you are also considering.
10 of 12 specifications differ. View DYU FF500 20 Inch Fat Tire Folding Electric Bike
- What is the riding range of the Cyrusher Trident Ebike?
- The Trident offers a maximum range of 50–75 miles (50-75 miles) depending on terrain, rider weight, and pedal assist level.
- What motor does the Cyrusher Trident use?
- It features a Bafang M620 mid-drive motor producing 160 Nm of torque, delivering excellent climbing power and efficient performance on challenging terrain.
- Does the Cyrusher Trident have full suspension?
- Yes. It is equipped with a DNM 160 mm front air fork and a DNM rear air shock for improved comfort and control on rough trails.
- Is the Cyrusher Trident suitable for mountain trails?
- Yes. Its mid-drive motor, full suspension, fat tyres, hydraulic brakes, and Shimano 10-speed drivetrain make it ideal for mountain biking, forest trails, gravel roads, and other demanding off-road terrain.
- 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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