Fat tire & moto
Ariel Rider Kepler
$1,699
Price
118 Nm
Torque
1040 Wh
Battery
98.6 lb
Weight
Ariel Rider Kepler vs Heybike Ranger 3.0 Pro
Two fat tire & moto e-bikes at $1,499–$1,699, every published spec lined up. Nothing here is estimated: a figure the manufacturer does not publish is shown as “—”.
Where they differ
- The Kepler makes 38 Nm more torque.
- The Kepler carries 320 Wh more battery.
- The Kepler peaks 540 W higher.
- The Ranger 3.0 Pro claims 15 more miles of range.
- The Ranger 3.0 Pro costs $200 less.
- The Ranger 3.0 Pro carries 40 lb more total load.
- The Kepler uses a torque + cadence sensor; the Ranger 3.0 Pro uses a torque sensor.
- The Kepler is hardtail (front only); the Ranger 3.0 Pro is full suspension.
Every spec, side by side
| Kepler | Ranger 3.0 Pro | |
|---|---|---|
| Headline | ||
| Price | $1,699 | $1,499 |
| Category | Fat tire & moto | Fat tire & moto |
| Price per Wh | $1.63 per Wh | $2.08 per Wh |
| Model year | 2026 | 2026 |
| Motor | ||
| Torque | 118 Nm | 80 Nm |
| Motor power | 750 W | 750 W |
| Peak power | 1940 W | 1400 W |
| Drive | Rear hub | Rear hub |
| Motor make | Ariel Rider | Heybike |
| Sensor | Torque + cadence | Torque |
| Battery & range | ||
| Battery | 1040 Wh | 720 Wh |
| Voltage | 52V | — |
| Capacity | 20 Ah | — |
| Cells | Samsung 21700 | — |
| Removable battery | Yes | — |
| Range (claim) | 75 mi | 90 mi |
| Range as stated | Up to 75 miles | Up to 90 miles |
| Est. real range | 42 mi | — |
| Estimate assumes | 25 Wh per mile | — |
| Weight & capacity | ||
| Weight | 98.6 lb | — |
| Max load | 400 lb | 440 lb |
| Class & speed | ||
| Ships as | Class 2: throttle, assist to 20 mph | — |
| Unlocks to | Class 3 | — |
| Class | Class 2–3 | — |
| Throttle | Yes | — |
| Top assisted speed | 28 mph | 28 mph |
| Build | ||
| Gears | 8-speed | — |
| Drivetrain | Shimano Altus (13-32T) | — |
| Brakes | Hydraulic disc | Hydraulic disc |
| Front rotor | 203 mm | — |
| Rear rotor | 203 mm | — |
| Suspension | Hardtail (front only) | Full suspension |
| Rear travel | None | — |
| Front suspension | Yes | Yes |
| Tires | 24 x 4.0 | 20 x 4.0 |
| Display | Large full-colour, Bluetooth, USB-C | — |
| Sizes | One size | — |
| Step-through option | No | — |
| Included | ||
| Lights | Yes | Yes |
| Kickstand | — | Yes |
| Safety | — | UL 2849* |
| Safety certification | — | UL 2849: most models, confirm this one |
| As the maker states it | "UL Safety Certified" stated without naming the standard | "UL 2849 Safety Standards" on some models and "In accordance with UL 2849" on others, which is not the same claim |
| Warranty | — | 2 yr |
Specs transcribed from arielrider.com on 2026-09-20 and www.heybike.com on 2026-09-20. Manufacturers revise specs without notice: confirm before buying.