DYU C9 vs D3S vs SP1 vs C6: Which One Should You Buy? [2026]
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DYU C9 vs D3S vs SP1 vs C6
Four DYU e-bikes side by side: a long-range folder, a cheap mini, a featherweight with a removable battery and a retro city commuter.
Which DYU should you buy?
Short version: C9 for range, D3S for the lowest price, SP1 for weight and portability, C6 if you don't need to fold. If you can only pick one for a typical commute, I would go C9 or C6. The C9 offers the biggest battery and the C6 the best everyday setup with basket, rack and gears.
Four bikes, four jobs
They overlap less than you might think. The D3S and SP1 fold small, the C9 folds but is heavy, and the C6 is a full-size bike. The table is mostly a trade between weight, battery size and price.
A closer look at every pick
DYU C9 20 Inch Long-Range Ebike — €999
48V 15.6Ah battery, claimed 150 km assisted range, fat tires and hydraulic brakes for €999. Heavy at 30 kg.
DYU D3S 14 Inch Mini Folding Electric Bike — €499
A 19 kg, 14-inch folder with pedal assist, 36V 10Ah battery and a claimed 50 km range for €499.
DYU SP1 20 Inch Removable Power Bank Folding Ebike — €1,099
14 kg (no battery), removable power-bank pack, 700 x 450 x 620 mm fold. €1,099 single battery, €1,299 dual.
DYU C6 26 Inch City Electric Bike — €759
26-inch retro commuter with basket, rack, Shimano 6-speed and a removable 12.5Ah battery for €759.
Comparison table
| Model | Price | Battery | Weight | Folds? | Best for |
| C9 | €999 | 48V 15.6Ah | 30 kg | Yes | Long commutes |
| D3S | €499 | 36V 10Ah | 19 kg | Yes | Short trips, small budget |
| SP1 | €1,099 / €1,299 | 24V 5Ah (single) | 14 kg (excl. battery) | Yes | Portability |
| C6 | €759 | 36V 12.5Ah | 27 kg | No fold size listed | Everyday city riding |
Pros & Cons Across the Lineup
Pros
- Prices from €499 to €1,299.
- All four use 250W motors with a 25 km/h top speed or lower.
- Removable batteries on the SP1 and C6.
- Each product page lists a 30-day trial and 12-24 months warranty.
Cons
- Range figures are manufacturer claims.
- Prices are in euros, with EU plugs on several models.
- Heavy bikes (C9, C6) are not easy to carry.
- SP1's single battery is small for the price.
Answers before you buy
Which DYU has the longest range?
Which is lightest?
Which is cheapest?
Which one doesn't fold?
Do all four have a warranty?
My pick: C9 for range, C6 for everyday use
Choose by how you will actually ride. The C9 is the strongest all-rounder on paper, the C6 is the easiest to live with, the D3S is the budget option and the SP1 is for people who carry their bike a lot.
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