Duotts Z20

DUOTTS Z20 – powerful retro-design fat bike e-bike.

The DUOTTS Z20 is a retro-inspired e-bike that combines powerful performance with comfort and practical features. With a BAFANG motor with 250W nominal power and up to 750W maximum power, a 48V 15Ah battery and up to 90 km of range, the Z20 suits both daily commuting and longer adventures. The wide 20 x 4.0-inch fat bike tyres, front and rear suspension and hydraulic disc brakes provide stability on varied surfaces. Shimano 7-speed gears, Bluetooth, app connectivity, an LCD display and integrated turn signals complete the modern equipment.

BAFANG motor with 750W maximum power and 55 Nm torque.

The DUOTTS Z20 is powered by a BAFANG rear-hub motor with 250W nominal power and up to 750W maximum power. The motor delivers 55 Nm of torque and provides responsive acceleration as well as extra power on uphill climbs.

The specified top speed is up to 45 km/h and the bike has a speed limit of 25 km/h. The climbing ability is specified as up to 30 degrees, which gives good prospects for hilly roads. Speed and use must always be adapted to applicable traffic rules.

Three riding modes and six assistance levels.

The DUOTTS Z20 offers three riding modes: Pedal Assist Mode, Electric Mode and Normal Bike Mode. Pedal Assist provides electric help when you pedal, Electric Mode enables motor-driven riding with the throttle, and Normal Bike Mode lets you ride without motor assistance.

Pedal assistance has six levels from 0 to 5, where level 0 means assistance is off and levels 1–5 give progressively more motor support. The built-in speed sensor activates the assistance when you pedal and makes it easy to adapt your riding to the terrain and the effort you want.

48V 15Ah battery with up to 90 km of range.

The powerful 48V 15Ah battery gives a range of approximately 80–90 km with pedal assistance and up to approximately 45 km in pure electric mode. The battery is removable and can easily be taken along for charging separately from the bike.

The actual range is affected by the rider's weight, speed, assistance level, temperature and terrain. The battery is charged with the included 54.6V 2A charger and a full charge takes approximately 7–8 hours.

Shimano Tourney 7-speed gears for smooth riding.

The DUOTTS Z20 uses a Shimano Tourney 1×7 gear system with seven mechanical gears. The gears make it easy to adjust the pedalling resistance when starting off, on uphill climbs and over longer stretches on flat roads.

Together with the electric pedal assistance, the Shimano system provides a flexible and comfortable riding experience on both city roads and more varied surfaces.

Front and rear suspension for better comfort.

The Z20 has a full-suspension system with a front suspension fork with 60 mm of travel and an adjustable 750 lb rear shock absorber. The suspension helps absorb bumps and vibrations from uneven asphalt, gravel and minor potholes.

The front suspension is not adjustable and has no lockout function, while the rear shock absorber can be adjusted but not locked. The combination with the large fat bike tyres gives a more comfortable and more controlled ride.

20 x 4.0-inch fat bike tyres for varied terrain.

The DUOTTS Z20 is equipped with wide 20 x 4.0-inch air-filled off-road tyres with 30 TPI construction. The chunky tread pattern provides good grip on asphalt, gravel roads and hard-packed trails.

The tyres have a durable and puncture-resistant design that contributes to longevity and stability. The large air volume also helps absorb minor bumps and makes riding more comfortable on uneven roads.

Hydraulic disc brakes front and rear.

The DUOTTS Z20 has hydraulic disc brakes on both the front and rear wheel with 160 x 1.8 mm brake discs. The braking system provides smooth and controlled braking force with less hand effort than many mechanical alternatives.

Together with the wide fat bike tyres and the suspension, the brakes contribute to better control in both normal riding and harder braking.

300 lux LED headlight, brake light and turn signals.

The Z20 is equipped with a powerful front LED headlight of 300 lux that improves visibility in darker conditions. The manually controlled lighting provides good light on the road ahead of the bike.

The integrated rear light has a brake light function and turn signals that make it possible to signal your direction. The combination of front light, rear light and turn signals contributes to better visibility while riding.

Bluetooth, Duotts App and LCD display.

The DUOTTS Z20 has an LCD display with Bluetooth and support for the Duotts App. The app connection gives access to compatible digital functions via your mobile phone and complements the e-bike's electronic control system.

Retro design with comfortable saddle and practical storage.

The DUOTTS Z20 has a robust aluminium frame, a 72 cm wide aluminium handlebar and a long, padded saddle that provides a comfortable and upright riding position. The distinctive design combines a classic look with modern e-bike technology.

In the middle of the frame there is a spacious storage compartment for smaller personal belongings. The bike also has a steel rear luggage rack with up to 25 kg of load capacity and full-coverage mudguards front and rear that protect against water and dirt.

IPX4 protection and robust construction for up to 150 kg.

The DUOTTS Z20 has an IPX4 rating, which provides protection against water splashes from different directions. This makes the bike practical in varied weather conditions, but it should not be exposed to high-pressure washing or deep puddles.

The maximum load is 150 kg and the recommended rider height is approximately 170–200 cm. The bike measures approximately 1720 x 720 x 1200 mm, has a net weight of approximately 42.65 kg and is not foldable. The operating temperature is specified as -10 °C to 40 °C.

DUOTTS Z20 for comfortable rides and longer adventures.

The DUOTTS Z20 combines a BAFANG motor with up to 750W maximum power, a removable 48V 15Ah battery and up to 90 km of range with pedal assistance. Shimano 7-speed gears, six assistance levels, full suspension, hydraulic disc brakes and 20 x 4.0-inch fat bike tyres provide a stable and comfortable riding experience.

Bluetooth, app connectivity, LCD display, 300 lux headlight, brake light, turn signals and practical storage options make the Z20 a well-equipped e-bike for both everyday use and leisure.

The package includes the DUOTTS Z20, battery, front wheel, luggage rack, 54.6V 2A charger, tool kit with multi-tool, throttle, pedals, quick-release, protective covers for the motor axle, pump and user manual.

Order the DUOTTS Z20 from Wheelyshop if you are looking for a retro-inspired fat bike e-bike with long range, powerful motor assistance and comfortable equipment for both city riding and adventure.

Spare parts.

If you need spare parts that are not in our range, do not hesitate to contact us. We can special-order the specific spare part you are looking for and give you a quote. Our customer service is always ready to help you find the right solution for your needs and ensure that your product continues to work optimally. We strive to offer the best service to our customers and make sure you get the support you need.

Shipping terms

• Free shipping: applies to orders from €69.90 across the EU.
• Shipping cost: for orders under €69.90, a shipping fee of €6.95 applies.

Delivery times

• All products: delivery time is 5–10 working days.
• Special orders: for special orders placed by email, such as spare parts, delivery can take up to 20 working days.

Home delivery or pickup point

• Electric scooters and e-bikes: always delivered to your door, free of charge.
• On delivery day: you are responsible for being available at the given address – the carrier will usually contact you in advance to arrange a time.
• Pickup point instead: contact the carrier directly to change the delivery method.
• Smaller parcels: if the parcel does not fit in your letterbox, you will receive a notification about collection or a new delivery attempt.

Warranty period

• 2-year warranty: applies to all products – electric vehicles, accessories and spare parts – in addition to your statutory rights.
• No exceptions: no shorter warranty periods for individual components.

What the warranty covers

• Manufacturing and material defects: on electric vehicles this includes the battery, motor, controller, display and the supplied charger.
• Approved claims: we send spare parts, arrange a repair or replace the product – and we pay for parts, labour and shipping.

What to do if something is wrong

• Register the claim with us first: via the customer service page (log in with the same email address you used for your order and choose Something is wrong) – always before going to a local workshop.
• Attach photos and video: this speeds up the assessment.
• Keep the box: the original box is needed if the product has to be sent in.
• Terms: read the full warranty terms.

MobilePay

Pay with the MobilePay app on your phone.

Card payment

Visa, Mastercard and American Express.

Klarna

Pay with Klarna – the options available for your country are shown at checkout.

Satispay

Pay with the Satispay app: choose Satispay at checkout and confirm the payment on your phone.

Apple Pay & Google Pay

Quick and easy at checkout.

PayPal

Pay without revealing your payment details and choose how you want to pay.

• Response time: we reply within 24 hours, every day of the year.
• Contact us: on the customer service page – log in if your question is about an order, or choose Write to us if you have a question before buying. You will also find answers to common questions there.

• 14-day right of withdrawal: counted from the day you receive the goods.
• Electric vehicles: an electric vehicle that has been used or ridden – no matter how short the distance – is not taken back. Check the vehicle without riding it.
• Keep the original box: the product is always sent in its original box – we do not send out new boxes.
• Photos and video: only needed if the product is damaged or incorrect – the form will then ask you for them.
• How it works: read our return and refund policy.

EU-wide rules

• Electric bikes: under Regulation (EU) 168/2013 a pedal-assisted bike with a motor of max 250 W that cuts out at 25 km/h is a bicycle in every EU country – no registration, licence or insurance. Anything more powerful or faster is a moped (L1e) with type approval, registration, licence, insurance and helmet requirements.
• Electric scooters: e-scooters are excluded from the EU regulation, so each country sets its own rules on speed, power, minimum age, helmets, insurance and registration. In most countries the limit is 20–25 km/h.
• More powerful models: a scooter that exceeds your country’s limits may only be used on private or enclosed land.
• Sources: Regulation (EU) No 168/2013 and Your Europe – road rules and safety.

Electric scooter rules by country

Key facts per country, checked against the national authority in September 2026. Rules change often – always confirm the current rules with the linked authority before you buy and before you ride.

• Austria: e-scooters up to 600 W and 25 km/h follow bicycle rules; children under 12 only with supervision or a cycling licence; helmet mandatory under 16. Source: oesterreich.gv.at.
• Belgium: minimum age 16, max 25 km/h, bicycle rules, no passengers, never on the pavement; helmet mandatory from 1 September 2026 for scooters faster than 20 km/h. Source: belgium.be.
• Bulgaria: max 25 km/h; minimum age 14 on cycle lanes and 16 on streets limited to 50 km/h; helmet mandatory under 18; reflective vest at night. Source: State Agency Road Safety.
• Croatia: minimum age 14; helmet mandatory for all riders; cycle lanes where available; reflective vest in poor visibility. Source: Croatian Police.
• Cyprus: rules differ – check with the Road Transport Department before riding. Source: Road Transport Department.
• Czechia: an e-scooter counts as a bicycle if limited to 25 km/h and 250 W; helmet mandatory under 18; not on the pavement. Source: Czech Police.
• Denmark: minimum age 15, max 20 km/h, bicycle helmet mandatory, lights on at all times, bicycle rules apply. Source: Færdselsstyrelsen.
• Estonia: max 25 km/h and 1 kW; helmet mandatory under 16; riders aged 8–15 need supervision or a cycling licence; insurance required above 14 km/h or 25 kg. Source: Transpordiamet.
• Finland: light electric vehicle up to 25 km/h and 1 kW; minimum age 15; bicycle rules, not on the pavement; helmet recommended; motor insurance if over 25 kg. Source: Traficom.
• France: minimum age 14, limited to 25 km/h, liability insurance mandatory, cycle lanes, never on the pavement; helmet mandatory in Paris and several départements. Source: Service-Public.
• Germany: only e-scooters with a type approval (ABE) and insurance sticker; 6–20 km/h, max 500 W, minimum age 14, cycle paths or road, no helmet obligation. Source: eKFV.
• Greece: light personal electric vehicles limited to 25 km/h are treated as bicycles; minimum age 15; cycle lanes where they exist. Source: Ministry of Infrastructure and Transport leaflet.
• Hungary: rules are being revised – check with the Hungarian Police before riding. Source: Hungarian Police.
• Ireland: legal on public roads since May 2024 if max 400 W, 20 km/h and 25 kg; minimum age 16; no licence, tax or insurance; not on footpaths. Source: gov.ie.
• Italy: minimum age 14, helmet mandatory for all, max 20 km/h (6 km/h in pedestrian areas); identification plate since 16 May 2026 and liability insurance since 16 July 2026. Source: ACI.
• Latvia: minimum age 14 with a cycling or driving licence, max 25 km/h, registration with CSDD, one rider; helmet mandatory for ages 14–17. Source: CSDD.
• Lithuania: max 25 km/h and 1 kW; minimum age 16 (14 with a certificate); helmet mandatory under 18. Source: Lithuanian Transport Safety Administration.
• Luxembourg: max 25 km/h; not allowed under 10, ages 10–13 only on pavements and cycle paths; no registration; helmet recommended. Source: Police Grand-Ducale.
• Malta: e-kickscooters (max 20 km/h) must be inspected, registered and licensed with Transport Malta before use. Source: Transport Malta.
• Netherlands: only RDW-approved e-steps may be used on public roads – most models are not approved; minimum age 16, max 25 km/h, liability insurance and number plate required, no helmet obligation. Source: Rijksoverheid.
• Poland: max 20 km/h; minimum age 13 (bicycle card required under 18); helmet mandatory under 16 since 3 June 2026; no passengers. Source: gov.pl.
• Portugal: e-scooters up to 0.25 kW and 25 km/h are treated as bicycles; helmet mandatory; faster or more powerful models are not allowed on public roads. Source: Diário da República.
• Romania: minimum age 14; helmet mandatory under 16 on the road; cycle lanes or roads limited to 50 km/h; not on the pavement; no passengers. Source: Romanian Police.
• Slovakia: max 25 km/h; riders over 15 may use the road, younger riders only cycle paths and residential zones; helmet voluntary. Source: BECEP.
• Slovenia: light motor vehicle limited to 25 km/h; minimum age 15 since February 2026; helmet mandatory under 18. Source: Slovenian Traffic Safety Agency.
• Spain: max 25 km/h; from 1 October 2026 minimum age 15 and homologated helmet mandatory; registration with the DGT and liability insurance mandatory since 2026; never on pavements or interurban roads. Source: DGT.
• Sweden: an e-scooter counts as a bicycle if limited to 20 km/h and 250 W; helmet mandatory under 15; cycle paths, never on the pavement. Source: Transportstyrelsen.

Disclaimer

• Your responsibility: the summary above is for guidance only and is not legal advice. Laws and local by-laws change, and it is the rider’s responsibility to check what applies where the vehicle will be used – before purchase and before riding.