DYU UX BMX 20-Inch Fat Tire E-Bike Review
A retro-styled 20 x 3-inch fat-tire e-bike listed at €899, with a 250W motor, a 48V 13Ah removable battery and 57 lbs on its spec list. The spec list gives a recommended rider height of 5'5"-6'2", and no outside test of it was found.
Our verdict
The UX BMX is for a rider within the page's recommended height range who wants a retro-styled fat-tire e-bike at €899 and accepts that every figure comes from the store. Look elsewhere if you need an outside test, a named EU standard or details such as frame material and brake type. The main caveat is that no independent coverage was found, and the spec list names UL 2849, a US standard, while the page mentions neither CE nor EN 15194.
- Best for
- A rider within the page's recommended height who wants a retro-styled 20 x 3-inch fat-tire e-bike at €899 and accepts figures no outside test has checked.
- Skip if
- An EU standard named on the page, a stated frame material or brake type, or an outside test result matters to you.
Why 3.3/5: Tire size, battery, rider height, load and box contents on the spec list lift it; a US standard named on an EU-priced store, the lack of any independent test, and store-level terms and reputation notes covered elsewhere on this page hold it back.
With retro lines, 20 x 3-inch fat tires and a 250W motor, the UX BMX is listed at €899. The spec list gives a 48V 13Ah removable battery, a 25km/h max speed, 57 lbs and a recommended rider height of 5'5"-6'2", while the page claims a range of up to 100km. It names multi-level pedal assist and a walk-assist mode. No independent test of it was found in searches made on 2026-10-22.
Specifications
| Spec | Page says |
|---|---|
| Motor | 250W |
| Battery | 48V 13Ah removable battery |
| Max speed | 25km/h |
| Tire size | 20 x 3 inch |
| Weight | 57 lbs |
| Recommended rider height | 5'5"-6'2" |
| Load capacity | Max 265lbs |
| Range (page claim) | 100km |
| Brake | Disc brake |
| Riding modes (feature list) | Multi-level pedal assist and a walk-assist mode |
| Lights (feature list) | Headlight and rear light |
| Display (feature list) | LED power display showing battery level |
Options and pricing
The UX BMX comes in Black at €899, with a crossed-out price of €1,299 on the page, and its one variant was in stock when read. The single battery is a 48V 13Ah removable pack that a feature bullet calls plug-and-play. The box list names two pedals, a charger, an owner's manual, three Allen wrenches, two open-end hex wrenches and an open-end wrench with a socket.
How it compares
The DYU M20 All-Terrain Long-Range Electric Bike shares the €899 price and a 250W motor figure, but it is listed with a 20-inch fat-tire moto-style frame, a 1000W peak, a 48V 18.2Ah battery and 40kg, and it is not foldable. The DYU C9 20-Inch Long-Range Electric Bike costs €999, folds, and lists a 48V 15.6Ah battery and 150km per the page, against the UX BMX's 100km claim.
Shipping, returns and warranty
Where it sells: the shipping page names these EU countries: Austria, Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden (Croatia appears twice); Germany is not on the list, and a cart test on 22 October 2026 returned no shipping rate for a German, UK, US, Swiss, Norwegian or Vietnamese address, while French, Spanish and Italian addresses got free delivery in an estimated 3 to 5 business days. Prices are in euros. Shipping: free over EUR 100, an estimated 3 to 5 business days, shipped within 2 working days from a Poland or German warehouse by FedEx, UPS or DPD (the FAQ page says 2 to 7 business days, and the Terms of Service say delivery 'may take up to 50 days'). Returns: the return page gives 30 days for a bike in its original packaging with under 10 km on the display; for a change of mind the buyer pays the return and EUR 200 per e-bike (EUR 100 per battery) is deducted, a defective bike is exchanged or refunded within 30 days, and cancelling before shipment costs 5%. The Terms of Service describe a 7-day dead-on-arrival rule, 10 days for faulty goods and 30 days for unopened items. Warranty: the warranty page gives one year from delivery for manufacturing defects: a replacement frame only (no labor), a battery repaired or replaced in year one and then a prorated credit, tires, brake pads and chains excluded, and claims by email to [email protected] with photos or video; product pages show a '12-24 Months Warranty' banner.
Before you buy
The page shows no customer reviews of this item. Reputation: Trustpilot lists dyucycle.com with a TrustScore of 3.7 from 209 reviews (60% five-star, 26% one-star), a profile claimed in June 2024 with a Dover, Delaware address, and says the company replies to negative reviews. Recent one-star reviews describe bikes cutting out while riding, requests for EUR 100 to 200 return fees, unanswered emails and, from a Dutch reviewer, a model that was not road legal in the Netherlands; we have not verified any of them. The registry shows dyucycle.com registered on 8 April 2021. The About page says DYU was founded in 2016 and sells in over 60 countries, which we could not confirm; the Terms of Service are governed by the laws of Hong Kong, while the contact page gives a Rotterdam office address. The page shows a crossed-out price of €1,299 next to its '60-Day Lowest Price Guarantee' banner; that is the store's own comparison figure.
What we liked
- Spec list gives a 20 x 3 tire size, a 250W motor, a 48V 13Ah removable battery and a 25km/h max speed
- The page lists a recommended rider height (5'5"-6'2") and a max load of 265lbs
- The page names multi-level pedal assist, a walk-assist mode, a headlight, a rear light and an LED battery-level display
- The battery is removable and described as plug-and-play, and the box list names a charger, pedals and a set of wrenches
Worth noting
- No independent test of this model was found in the searches made on 2026-10-22
- The spec list names UL 2849, a US standard, and the page mentions neither CE nor EN 15194
- The range claim of up to 100km appears three times with no test conditions and no charging time
- The page names no frame material and no brake type beyond 'Disc brake'
Questions before you buy
What rider height and load does the page list?
The spec list gives a recommended rider height of 5'5"-6'2" and a max load of 265lbs, with a tire size of 20 x 3 inch and a weight of 57 lbs (a feature bullet says 26 kg).
What battery does it use and how far does the page say it goes?
The spec list gives a 48V 13Ah removable battery, which a feature bullet calls plug-and-play. The page claims up to 100km per charge in three places but gives no charging time and no test conditions.
What is in the box?
The box list names two pedals, a charger, an owner's manual, three Allen wrenches, two open-end hex wrenches and an open-end wrench with a socket.
Does DYU ship to my country?
The shipping page names 24 EU countries and prices are in euros. A cart test on 22 October 2026 gave free delivery in an estimated 3 to 5 business days for French, Spanish and Italian addresses and no shipping rate for German, UK, US, Swiss, Norwegian or Vietnamese addresses. Ask [email protected] before ordering from anywhere else.
What is the return window and what does it cost?
The return page gives 30 days for a bike in its original packaging with under 10 km on the display; for a change of mind you pay the return and EUR 200 per e-bike is deducted (EUR 100 per battery). The Terms of Service describe 7, 10 and 30-day rules, so get the terms that apply to your order in writing.
What warranty does a DYU bike carry?
The warranty page gives one year from delivery for manufacturing defects: a replacement frame only, a battery repaired or replaced in year one and then a prorated credit, and claims by email with photos or video. Product pages show a '12-24 Months Warranty' banner that the page does not explain.
Sources & verification
What this review is based on and the day we last read it. Specs and claims from the maker are the maker’s own; the verdict and the rating are ours.
From the store
- DYU UX BMX 20-Inch Fat Tire Electric Bike product page: specs, options and price (the buy buttons go there)Specs, options and the listed priceRead October 22, 2026
- DYU shipping and delivery page24 EU countries named, free over EUR 100, 3-5 business days, shipped from a Poland or German warehouseRead October 22, 2026
- DYU return and refund policy page30 days; EUR 200 per bike deducted for a change of mind; EUR 100 fee on quality returns; 5% fee when cancelling before shipmentRead October 22, 2026
- DYU warranty page1-year limited warranty: frame replacement only, battery 1 year then prorated credit, claims by email with photos or videoRead October 22, 2026
- DYU Terms of ServiceStore operated by 'dyucycle'; governed by the laws of HK; its return section (7, 10 and 30 days) differs from the return pageRead October 22, 2026
- DYU FAQ pageDelivery in 2-7 business days by FedEx, UPS or DPD; order changes before dispatchRead October 22, 2026
- DYU contact page[email protected]; office address Shannonweg 40, 3197 LG Botlek, Rotterdam, NetherlandsRead October 22, 2026
- DYU About pageMilestones as the store states them (founded 2016, Costco in the US 2018, 60+ countries); not independently confirmedRead October 22, 2026
Independent
- Trustpilot profile for dyucycle.comTrustScore 3.7 from 209 reviews, 60% five-star, 26% one-star; claimed profile; Dover, Delaware address shownRead October 22, 2026
- Verisign RDAP record for dyucycle.comDomain registration date (see the 'Before you buy' section)Read October 22, 2026
What we couldn’t verify
- The spec list names 'UL 2849 Certification', a US standard, although the store sells in euros to EU countries; the page mentions neither CE nor EN 15194, and it shows no customer reviews.
- The page claims a range of up to 100km in three places without test conditions or a charging time, and names no frame material or brake type beyond 'Disc brake'.
- Weight is 57 lbs in the header and spec list and 26 kg in a feature bullet, and the page does not say whether the battery is included; no independent coverage was found in searches on 2026-10-22.
- The store's pages disagree on returns: 30 days on the return page, and 7, 10 and 30-day rules in the Terms of Service; the return page deducts EUR 200 per e-bike for a change of mind.
- Product pages show a '12-24 Months Warranty' banner while the warranty page gives one year for manufacturing defects.
- No independent test of this model was found in web searches made on 22 October 2026, so the page's own figures are the only source.
Spotted an error or something out of date? Tell us and we’ll fix it and update the date.
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