How portable is the C9 once it is folded?

The C9 folds to roughly 97 × 46.5 × 76cm, which is very useful for storage and can make vehicle transport much easier than a non-folding city bike.However, it weighs about 30kg. The folding mechanism reduces its size, not its weight, so this is not a bike most people will want to carry up stairs or through a station regularly.

Are the C9 brakes and suspension a meaningful upgrade for longer rides?

Yes. DYU equips the C9 with hydraulic disc brakes and a suspension system, which gives stronger braking feel and better bump control than a basic rigid compact folder on longer or rougher journeys.

Who should choose the C9 instead of the FF500 or C6 Pro?

Choose the C9 if long battery range and a folding 20-inch format are the priorities. Choose the FF500 if you specifically want wide fat tyres and a more rugged-feeling setup, or the C6 Pro for a conventional 26-inch step-through city-bike layout.The C9 is the most storage-friendly of those long-range choices, but at around 30kg it is still a substantial bike to lift.

Is the DYU C9 Electric Bike easy to assemble?

The DYU C9 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 C9 Electric Bike water resistant?

The DYU C9 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 C9 Electric Bike

Motor

250W

Battery

48V 15.6AH

Speed

25 KM/H

Range

129 KM

€1.565,95 €1.083,95

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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.

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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 C9 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 C9 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 C9 Electric Bike? Ask our team a question before ordering.

WhatsApp Us Call Us 0800 099 6187

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

Quick Summary
The DYU C9 20″ Long-Range Electric Bike is a premium foldable eBike designed for city commuting, touring, and everyday adventure. Combining an efficient 250 W motor with a high-capacity 48V 15.6Ah removable battery, it delivers an impressive range that can reach up to 150 km on pedal-assist and a smooth, responsive ride that’s perfect for urban streets and light off-road paths.

Smooth & Responsive Power
The brushless 250 W motor provides dependable pedal support up to the legal UK/EU top speed of 25 km/h, while the wide 20″ tyres and shock-absorbing frame deliver a comfortable ride on surfaces from paved roads to gravel paths.

Long-Range Battery Performance
With its large 15.6 Ah battery pack, the C9 is built for long journeys and daily commuting without constant recharging. Real-world ride distances can vary depending on assist level, terrain, and rider weight, but the efficient battery system pushes this model into the long-range category for foldable eBikes.

Comfort & Control
Hydraulic disc brakes provide strong, consistent stopping power in varied conditions, while the ergonomic frame geometry and suspension components smooth out bumps for a more enjoyable ride. The LCD display gives clear visibility over speed, battery level, and assist mode at a glance.

Specifications

Collection	DYU Electric Bikes
Brand	DYU
Motor Power	250W
Battery	48V 15.6Ah
Top Speed	15.5 MPH
Max Range	80 Miles
Charging Time	5+ Hours

Shock Absorbers	Seatpost Shock
Wheel Size	20″ × 3.0″ Wide Tyres
Brakes	Dual Hydraulic Disc Brakes
Gears	7 Speed Shimano Gears
Bike Weight	30KG
Max Rider Weight	120KG