Commuter
Urtopia Carbon Atom
$2,499
Price
90 Nm
Torque
835 Wh
Battery
61.7 lb
Weight
Urtopia Carbon Atom vs Vvolt Centauri II
Two commuter e-bikes at $2,399–$2,499, every published spec lined up. Nothing here is estimated: a figure the manufacturer does not publish is shown as “—”.
Where they differ
- The Carbon Atom peaks 600 W higher.
- The Carbon Atom carries 345 Wh more battery.
- The Carbon Atom claims 33 more miles of range.
- The Centauri II makes 30 Nm more torque.
- The Centauri II is 8.7 lb lighter.
- The Centauri II costs $100 less.
- The Carbon Atom uses a torque sensor; the Centauri II uses a torque + cadence sensor.
- The Carbon Atom is rear hub; the Centauri II is mid-drive.
- The Carbon Atom is hardtail (front only); the Centauri II is rigid.
- The Carbon Atom has a throttle; the Centauri II has no throttle.
- The Carbon Atom ships as class 2–3; the Centauri II ships as class 3.
Every spec, side by side
| Carbon Atom | Centauri II | |
|---|---|---|
| Headline | ||
| Price | $2,499 | $2,399 |
| Category | Commuter | Commuter |
| Price per Wh | $2.99 per Wh | $4.90 per Wh |
| Model year | 2026 | 2026 |
| Motor | ||
| Torque | 90 Nm | 120 Nm |
| Motor power | 750 W | 350 W |
| Peak power | 1250 W | 650 W |
| Drive | Rear hub | Mid-drive |
| Motor make | Urtopia | Vvolt |
| Sensor | Torque | Torque + cadence |
| Battery & range | ||
| Battery | 835 Wh | 490 Wh |
| Voltage | 48V | — |
| Capacity | 17.4 Ah | 13.6 Ah |
| Cells | LG | — |
| Removable battery | Yes | Yes |
| Range (claim) | 93 mi | 60 mi |
| Range as stated | Up to 93 mi (180 lb rider, ECO, flat, no throttle) | Up to 60 miles real-world on pedal assist |
| Est. real range | 42 mi | 31 mi |
| Estimate assumes | 20 Wh per mile | 16 Wh per mile |
| Weight & capacity | ||
| Weight | 61.7 lb | 53 lb |
| Max load | 330 lb | — |
| Class & speed | ||
| Ships as | Class 2: throttle, assist to 20 mph | Class 3: pedal assist to 28 mph |
| Unlocks to | Class 3 | Class 3 |
| Class | Class 2–3 | Class 3 |
| Throttle | Yes | No |
| Top assisted speed | 28 mph | 28 mph |
| Build | ||
| Drivetrain | — | Gates carbon belt |
| Brakes | Hydraulic disc | Hydraulic disc |
| Front rotor | — | 180 mm |
| Rear rotor | — | 180 mm |
| Suspension | Hardtail (front only) | Rigid |
| Fork travel | 80 mm | Rigid |
| Rear travel | None | None |
| Front suspension | Yes | No |
| Suspension seatpost | 30 mm | No |
| Tires | 26 x 2.4 | — |
| Display | 3.5" LCD | — |
| Frame | Toray carbon fibre | — |
| Sizes | One size | S/M, M/L, L/XL |
| Step-through option | No | — |
| Included | ||
| Lights | Yes | Yes |
| Safety | UL 2271 | UL 2849* |
| Safety certification | UL 2271: battery only | UL 2849: most models, confirm this one |
| As the maker states it | Battery UL 2271 Certified (Classic also EN 50604) | The Alpha II is tested and certified to the rigorous UL-2849 standard |
| Warranty | 2 yr | — |
| Warranty terms | 2-Year Warranty (brand policy) | — |
Specs transcribed from newurtopia.com on 2026-09-20 and vvolt.com on 2026-09-20. Manufacturers revise specs without notice: confirm before buying.