Commuter
Aventon Level 4 ADV
$2,799
Price
100 Nm
Torque
800 Wh
Battery
61 lb
Weight
Aventon Level 4 ADV vs Trek FX+ 2
Two commuter e-bikes at $2,299.99–$2,799, every published spec lined up. Nothing here is estimated: a figure the manufacturer does not publish is shown as “—”.
Where they differ
- The Level 4 ADV makes 40 Nm more torque.
- The Level 4 ADV carries 280 Wh more battery.
- The FX+ 2 costs $499 less.
- The FX+ 2 is 5.2 lb lighter.
- The Level 4 ADV is mid-drive; the FX+ 2 is rear hub.
- The Level 4 ADV has no throttle; the FX+ 2 has a throttle.
Every spec, side by side
| Level 4 ADV | FX+ 2 | |
|---|---|---|
| Headline | ||
| Price | $2,799 | $2,299.99 |
| Category | Commuter | Commuter |
| Price per Wh | $3.50 per Wh | $4.42 per Wh |
| Model year | 2026 | 2026 |
| Motor | ||
| Torque | 100 Nm | 60 Nm |
| Motor power | — | 500 W |
| Peak power | 750 W | — |
| Drive | Mid-drive | Rear hub |
| Motor make | Aventon Ultro S | — |
| Sensor | Torque | Torque |
| Battery & range | ||
| Battery | 800 Wh | 520 Wh |
| Capacity | 20 Ah | — |
| Cells | Samsung 21700 58E | — |
| Removable battery | Yes | Yes |
| Range (claim) | — | 50 mi |
| Range as stated | — | Up to 50 mi |
| Est. real range | 40 mi | 33 mi |
| Estimate assumes | 20 Wh per mile | 16 Wh per mile |
| Weight & capacity | ||
| Weight | 61 lb | 55.78 lb |
| Max load | 300 lb | 300 lb |
| Class & speed | ||
| Ships as | — | Class 2: throttle, assist to 20 mph |
| Class | — | Class 2 |
| Throttle | No | Yes |
| Top assisted speed | — | 20 mph |
| Build | ||
| Gears | 10-speed | 8-speed |
| Drivetrain | Shimano Cues (11-39T) | Shimano ESSA U2000 (11-45T) |
| Brakes | Hydraulic disc | Hydraulic disc |
| Front rotor | — | 180 mm |
| Rear rotor | — | 180 mm |
| Suspension | Hardtail (front only) | Hardtail (front only) |
| Fork travel | 100 mm | 63 mm |
| Rear travel | None | None |
| Front suspension | Yes | Yes |
| Suspension seatpost | 50 mm | 50 mm |
| Tires | — | 650 x 50mm (27.5 x 2.0) Bontrager GR0 Comp |
| Display | — | LCD display |
| Frame | 6061 aluminium | Alpha Gold Aluminum |
| Sizes | R, L | S-XL |
| Step-through option | Yes | No |
| Included | ||
| Lights | Yes | Yes |
| Fenders | Yes | Yes |
| Rack | Yes | Yes |
| Kickstand | Yes | Yes |
| Safety | UL 2849 | UL 2849 |
| Safety certification | UL 2849: full system | UL 2849: full system |
| As the maker states it | UL and TUV Safety Certified - UL 2849 / UL 2271 | All e-systems that Trek currently uses have been tested to UL 2849 and EN 15194 as appropriate, and certified to UL 2849 |
| Warranty | 2 yr | — |
| Warranty terms | Two-Year Limited Warranty on frames and framesets (brand policy) | — |
Specs transcribed from www.aventon.com on 09/20/2026 and www.trekbikes.com on 09/30/2026. Manufacturers revise specs without notice: confirm before buying.