Commuter
Urtopia Carbon Classic Step-Thru
$1,999
Price
45 Nm
Torque
353 Wh
Battery
41 lb
Weight
Urtopia Carbon Classic Step-Thru vs Vvolt Centauri II
Two commuter e-bikes at $1,999–$2,399, every published spec lined up. Nothing here is estimated: a figure the manufacturer does not publish is shown as “—”.
Where they differ
- The Centauri II makes 75 Nm more torque.
- The Centauri II carries 137 Wh more battery.
- The Carbon Classic Step-Thru is 12 lb lighter.
- The Carbon Classic Step-Thru costs $400 less.
- The Carbon Classic Step-Thru claims 12 more miles of range.
- The Centauri II assists 3 mph faster.
- The Carbon Classic Step-Thru uses a torque sensor; the Centauri II uses a torque + cadence sensor.
- The Carbon Classic Step-Thru is rear hub; the Centauri II is mid-drive.
- The Carbon Classic Step-Thru has a throttle; the Centauri II has no throttle.
- The Carbon Classic Step-Thru ships as class 2; the Centauri II ships as class 3.
Every spec, side by side
| Carbon Classic Step-Thru | Centauri II | |
|---|---|---|
| Headline | ||
| Price | $1,999 | $2,399 |
| Category | Commuter | Commuter |
| Price per Wh | $5.66 per Wh | $4.90 per Wh |
| Model year | 2026 | 2026 |
| Motor | ||
| Torque | 45 Nm | 120 Nm |
| Motor power | 350 W | 350 W |
| Peak power | 500 W | 650 W |
| Drive | Rear hub | Mid-drive |
| Motor make | Urtopia | Vvolt |
| Sensor | Torque | Torque + cadence |
| Battery & range | ||
| Battery | 353 Wh | 490 Wh |
| Voltage | 36V | — |
| Capacity | 9.8 Ah | 13.6 Ah |
| Cells | Samsung | — |
| Removable battery | Yes | Yes |
| Range (claim) | 72 mi | 60 mi |
| Range as stated | Up to 72 mi (180 lb rider, ECO, flat, no throttle) | Up to 60 miles real-world on pedal assist |
| Est. real range | 22 mi | 31 mi |
| Estimate assumes | 16 Wh per mile | 16 Wh per mile |
| Weight & capacity | ||
| Weight | 41 lb | 53 lb |
| Max load | 240 lb | — |
| Class & speed | ||
| Ships as | Class 2: throttle, assist to 20 mph | Class 3: pedal assist to 28 mph |
| Unlocks to | Class 2 | Class 3 |
| Class | Class 2 | Class 3 |
| Throttle | Yes | No |
| Top assisted speed | 25 mph | 28 mph |
| Build | ||
| Gears | 8-speed | — |
| Drivetrain | Shimano | Gates carbon belt |
| Brakes | Hydraulic disc | Hydraulic disc |
| Front rotor | 160 mm | 180 mm |
| Rear rotor | 160 mm | 180 mm |
| Suspension | — | Rigid |
| Fork travel | — | Rigid |
| Rear travel | None | None |
| Front suspension | — | No |
| Suspension seatpost | No | No |
| Tires | Kenda 700 x 40c | — |
| Display | 3.5" colour LCD | — |
| Frame | Toray carbon fibre | — |
| Sizes | S, M, L | S/M, M/L, L/XL |
| Step-through option | Yes | — |
| 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.