ADO Air 28 Ultra vs Engwe O20 Boost
Torque, battery, weight, pricing and features — side by side.
Each on its own: ADO Air 28 Ultra specs, UK price and stock · Engwe O20 Boost specs, UK price and stock
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The upgraded 3-speed Air 28
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£1,799
Applied automatically when you use our Buy button. Only needed if you go direct:
Our own ADO code: £50 off at the official ADO UK store, and it credits this site as the referrer. Our Buy buttons apply it for you — you should see it come off in the basket before you pay. Verified at checkout, 8 September 2026 (£1,599.00 to £1,549.00). Applied automatically when you use our Buy button. Only needed if you go direct:
Our own ADO code: £50 off at the official ADO UK store, and it credits this site as the referrer. Our Buy buttons apply it for you — you should see it come off in the basket before you pay. Verified at checkout, 8 September 2026 (£1,599.00 to £1,549.00).BESTEBIKESUK
£50 off — applied for you
BESTEBIKESUK
Delivery: Free (UK)
Out of stock at last check · checked
Folding step-through with torque-sensor assist, a 720Wh battery and hydraulic brakes
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£1,099
Applied automatically when you use our Buy button. Only needed if you go direct:
Our own code: 10% off at the official Engwe UK store, and it credits this site as the referrer. Our Buy buttons apply it for you. Verified at checkout, 31 August 2026. Applied automatically when you use our Buy button. Only needed if you go direct:
Our own code: 10% off at the official Engwe UK store, and it credits this site as the referrer. Our Buy buttons apply it for you. Verified at checkout, 31 August 2026.BESTEBIKESUK
10% off — applied for you
BESTEBIKESUK
Delivery: Free (UK)
In stock at last check · checked
Which should you choose?
Choose the ADO Air 28 Ultra if…
…it is lighter (6.5 kg lighter).
Choose the Engwe O20 Boost if…
…it costs less (£700 cheaper), has more torque (+35 Nm) and carries a bigger battery (+360 Wh).
Based only on the measured differences below — manufacturer-published figures, not independently tested.
Our take
ADO Air 28 Ultra
The Ultra is the upgraded Air 28: a Bafang H730 three-speed automatic motor (vs the Pro's H700 two-speed), giving roughly 24% more torque in low-speed mode. Battery, range, frame, brakes and weight are otherwise identical to the Air 28 Pro.
Engwe O20 Boost
The comfort-and-range pick. A fuller-size, planted ride with a big 720 Wh battery and a 75 Nm torque sensor that flatters your pedalling. It folds too, but it is heavier than the Zip, so it suits being your main everyday bike more than something to lug onto trains daily. Choose it for cushion and range over outright portability.
| Spec | ADO Air 28 Ultra | Engwe O20 Boost |
|---|---|---|
| Best UK price | £1,799 | £1,099 £700 cheaper |
| RRP | £1,799 | £1,199 |
| Delivery | Delivery: Free (UK) | Delivery: Free (UK) |
| Availability at last check | Out of stock at last check — 1 Oct 2026 | In stock at last check — 1 Oct 2026 |
| Motor brand & type | Bafang Hub | Engwe Hub |
| Motor torque | 40 Nm | 75 Nm +35 Nm |
| Battery capacity | 360 Wh | 720 Wh +360 Wh |
| Voltage · amp-hours | 36 V · 10 Ah | 48 V · 15 Ah |
| Total weight | 18.5 kg 6.5 kg lighter | 25 kg |
| Frame type | Step Through | Step Through |
| Release | February 2026 — 8 months on market | June 2026 — 4 months on market |
| Tyre size | 28 x 1.8 (700c) | 20 x 2.125 urban hybrid (anti-puncture) |
| Gears | Bafang H730 3-speed automatic | Shimano Altus 8-speed (RD-M310) |
| Brakes | Hydraulic disc | Hydraulic disc, double piston |
| Frame material | 6061 Aluminium alloy | 6061 aluminium alloy, internal battery, step-through |
| Rider height | 160–210 cm | 152–189 cm |
| Max load | 120 kg | 150 kg |
| Top speed | 25 km/h | 25 km/h (UK EPAC) |
| Range | Up to 100 km | Up to 141 km (PAS1) |
| Colours | Grey, Latte | Soft Purple, Graphite Gray, Dusty Blue |
| Motor | Bafang H730 (3-speed) | — |
| Suspension | — | Front hydraulic, 50mm travel, adjustable lockout |
| Frame | — | 6061 aluminium alloy, step-through, folding |
| Battery | — | 48V 15Ah 720Wh, 21700 LG cells, with BMS |
| Charger | — | 54.6V 4A |
| Pedal assist | — | 5 levels, torque sensor |
| Certification | — | CE EN15194 (TUV) |
| App | — | ENGWE app (Bluetooth) |
| Folding | No | Yes |
| Auto lights | Yes | No |
| Indicators | Yes | No |
| Front basket support | Yes | No |
ADO Air 28 Ultra highlights
Engwe O20 Boost highlights
Frequently asked questions
Which has more torque, ADO Air 28 Ultra or Engwe O20 Boost?
The Engwe O20 Boost has more torque at 75 Nm, compared to 40 Nm on the ADO Air 28 Ultra.
Which has the bigger battery, ADO Air 28 Ultra or Engwe O20 Boost?
The Engwe O20 Boost has a larger battery at 720 Wh, versus 360 Wh on the ADO Air 28 Ultra.
Which is lighter, ADO Air 28 Ultra or Engwe O20 Boost?
The ADO Air 28 Ultra is lighter at 18.5 kg, compared to 25 kg on the Engwe O20 Boost.
Which is cheaper, ADO Air 28 Ultra or Engwe O20 Boost?
The Engwe O20 Boost is cheaper at £1,099, compared to £1,799 for the ADO Air 28 Ultra.
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