Is the DYU FF500 easy to carry because it folds?

No. The frame folds for storage and transport, but the FF500 weighs about 31kg. Think 'fits into less space' rather than 'easy to carry'; lifting it into a car is a two-hand job for many riders.

What are the 20 × 4-inch fat tyres on the FF500 actually good for?

The wide tyres create a larger contact patch and a more planted feel on loose, uneven or poor-quality surfaces. Combined with the front suspension, they make the FF500 more forgiving than a narrow-tyre city bike.The trade-offs are extra weight and rolling resistance. Fat tyres are useful for comfort and stability, but they do not make the bike a substitute for a purpose-built mountain bike on technical trails.

Can the FF500 battery be removed for charging?

Yes. DYU lists a removable 48V 14Ah battery, so it can be charged away from the bike. This is particularly useful because the complete FF500 is heavy and inconvenient to move just to reach a socket.

What range should I realistically expect from the FF500?

DYU advertises up to around 70km from the 48V 14Ah battery under favourable conditions. A 31kg bike on 4-inch fat tyres can use considerably more energy when ridden hard, uphill or on soft ground.For real trip planning, leave a generous reserve and expect rider weight, tyre pressure, temperature, terrain and assistance level to make a noticeable difference.

Is the DYU FF500 Folding Fat Tyre Electric Bike easy to assemble?

The DYU FF500 Folding Fat Tyre Electric Bike arrives mostly assembled. Final setup normally includes aligning and securing the handlebars, fitting the pedals and completing essential safety checks. Allow approximately 20–30 minutes, or select our professional assembly and PDI service.

Is the DYU FF500 Folding Fat Tyre Electric Bike water resistant?

The DYU FF500 Folding Fat Tyre Electric Bike is not fully waterproof. Avoid prolonged exposure to heavy rain, and never submerge or pressure wash the bike or its electrical components. After riding in wet conditions, wipe the bike dry and store it in a dry, sheltered location.

DYU FF500 Folding Fat Tyre Electric Bike 48V 14Ah DYU

Certified

DYU FF500 Folding Fat Tyre Electric Bike

SKU: FF500

Motor

500W

Battery

48V 14AH

Speed

15.5 MPH

Range

43 MILES

£1,199.00 £749.00

Sold out

Klarna £249.67 ×3

Clearpay £187.25 ×4

PayPal £249.67 ×3

Finance

From —/mo 24, 36 or 48 months at 15.9% APR 6 or 12 months at 0% interest

Shop Pay

From £62.42/mo 12 months at 0% interest Up to 24 months available

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Out of stock

This item is currently unavailable
Contact us for the latest restock estimate
We can recommend a suitable in-stock alternative

Click & Collect Collection from our Nuneaton workshop

Collect from our Nuneaton workshop

Collection is available by appointment from our Nuneaton workshop. The preparation time depends on where the product is currently stored. Contact us before ordering for the latest availability, or place your order and we will confirm when it is ready to collect.

Transfer required to Nuneaton Usually 5–7 working days

Products stored at another warehouse normally require 5–7 working days to reach our workshop. We will confirm as soon as the item is ready and arrange your collection appointment.

Best Price Guaranteed Found the same product for less?

Best Price Guaranteed

Seen the exact same product advertised for less? Send us the live offer before you order and we’ll check whether we can match it.

We consider genuine UK retailer offers for items that are in stock
The model, specification, colour, condition and delivery terms must be like-for-like
Marketplace or private sellers, used or clearance items, private codes, finance-only offers, bundle deals and obvious errors are excluded

Usually answered within 24 hours. Need a quicker answer? WhatsApp us or call 0800 099 6187.

Why Buy From TrailSurge? UK showroom, product support & aftercare

Buy your DYU FF500 Folding Fat Tyre Electric Bike with UK-based support

TrailSurge is a UK retailer with a showroom and workshop in Nuneaton. Our team can help before you order and continue supporting you after your DYU FF500 Folding Fat Tyre Electric Bike arrives.

UK-based customer support before and after your purchase
Showroom and workshop in Nuneaton
Help with product questions, setup, parts and aftercare
Tracked UK delivery with support if you need help with your order
Speak to a real member of our team before placing your order

Why buy through TrailSurge? For the best UK-based support and aftercare, we recommend buying through TrailSurge rather than ordering directly from overseas manufacturers or China-based sellers, where returns, warranty support and parts handling can be more difficult.

Need help with the DYU FF500 Folding Fat Tyre Electric Bike? Ask our team a question before ordering.

WhatsApp Us Call Us 0800 099 6187

Road use notice: This bike is over 250W and is for private land/off-road use only. Need a UK road-compliant option? View road legal e-bikes .

Check your fit

Size & Rider Fit

Maximum Rider Weight: 150KG

Trail Surge Warranty Plus FULL OFFICIAL WARRANTY INCLUDED UK-based support alongside the manufacturer warranty TRAILSURGE COVER 12 months

TWO LAYERS OF PROTECTION

More confidence after you buy

TrailSurge Warranty+ gives you a direct UK warranty alongside the product’s manufacturer warranty.

01 TRAILSURGE WARRANTY +

12 months of TrailSurge support

UK-based fault support
Battery, motor and frame fully covered.
Repair, parts or another suitable solution where eligible

02 DYU WARRANTY

Manufacturer warranty period See product details

Manufacturer cover

Manufacturing defects within the applicable warranty period.

Typical component protection Eligible faults affecting the frame and forks, motor and drive system, controller, battery and BMS, charger, wiring, display, gears, brakes and factory-fitted controls.

Description

The DYU FF500 folding e bike is a compact powerhouse designed for riders who want all-terrain capability and convenience in one package. With its fat tyres, foldable frame, and robust 250W motor, this bike can take on city streets or forest trails with equal ease.

Smooth Power Delivery
Enjoy responsive pedal-assist and throttle control powered by a 250W motor. Whether you're commuting or exploring, the FF500 adapts to your pace and terrain effortlessly.

Comfort & Control
The front suspension and wide 20x4” tyres soak up bumps and uneven ground, while Shimano gears and disc brakes give you precise control no matter the surface.

Smart Battery System
The 48V 14Ah lithium battery delivers impressive range and performance. Easily removable for off-bike charging, it gives you flexibility for everyday use.

Tech You Can Trust
Track speed, battery level, and assist mode on the intuitive LCD display. The FF500 also includes integrated front and rear lights for safety in low-light riding.

Built for Everyday Use
Fold it in seconds to store in your boot, hallway, or office. With a max load of 150kg and rugged build quality, the FF500 is made to handle daily commutes, weekend rides, and everything in between.

This model is part of our electric bikes range. If you are comparing compact or easy-storage options, browse our folding electric bikes, and electric bikes with throttle.

Specifications

Collection	DYU Electric Bikes
Brand	DYU
Bike Type	Folding, Fat Tyre, City & Commuter
Motor Power	500W
Battery	48V 14AH
Top Speed	15.5 MPH
Max Range	43 Miles
Charging Time	5+ Hours

Shock Absorbers	Front
Wheel Size	20inch x 4.0 Fat Tyre
Brakes	Dual Mechanical Disc Brakes
Gears	7 Speed Shimano Gears
Bike Weight	28KG
Max Climb	15 degrees
Max Rider Weight	150KG
Dimensions

A close-up of a bicycle handlebar displaying a digital screen with speed, battery, and various mode indicators in color. The throttle and brake controls are also visible.

Multifunction Color Display & Smart Controls

Stay informed with a bright, full-colour LCD that shows speed, assist level, battery status, trip distance and more. Integrated buttons let you switch assist modes, activate cruise or walk modes, and control lights, giving you smarter riding at your fingertips.

Close-up of a bicycle’s rear wheel showing the Shimano gear cassette, derailleur, chain, black spokes, tire tread, and an orange reflector attached to the frame.

Reliable Shimano Drivetrain & Powerful Rear Motor

A robust rear hub motor works in harmony with the Shimano Tourney 7‑speed cassette, giving you smooth pedal assistance and responsive throttle control. Shift gears effortlessly and enjoy consistent power delivery for hills, trails and city commutes.

Close-up of a blue electric bicycle frame with a removable black battery partially slid out from the compartment. The rear tire and part of the bike fender are visible in the background.

Removable 48 V Battery With Secure Lock

The high‑capacity lithium battery slides neatly into the frame and locks with a key for security. Easily remove it for off‑bike charging and enjoy long‑range power without compromising on style or convenience.

What’s Included in the Box?

1 x DYU FF500 Folding Fat Tyre Electric Bike

1 x Charger

2X Keys

1 x Tool Kit

1 x User Manual

Assembly Information

Assembly Video

Watch the assembly guide below before first setup.

Download Product Manual

Frequently Asked Questions

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We have a real showroom and workshop in Nuneaton. See a selection of electric bikes, scooters and dirt bikes, speak to our team, and buy with confidence knowing who is here to help.

Explore the showroom Call 0800 099 6187

Appointment only. Please confirm the model you want to see before travelling.

TrailSurge showroom and workshop in Nuneaton

Real UK showroom

Visit us in NuneatonUnit 62, Centenary Business Centre, CV11 6RY