
e-MTB · Rockrider
Rockrider E-EXPL 520
Decathlon's most balanced hardtail e-MTB with a Yamaha mid-drive motor: 500 Wh, 130 mm fork and 29" wheels for under 2.000 €.
- Motor torque50 Nm
- Battery500 Wh
- Rangeup to 80 km (little climbing)
- Weight23,8 kg
Check availability and the current price on Decathlon.
Review
It is the natural step up from the E-ST 100: it swaps the hub motor for a 50 Nm Yamaha mid-drive motor, which pushes more naturally on climbs because it uses the gears.
The 500 Wh battery is integrated into the frame, and the 29" × 2,4" wheels with a 130 mm fork give confidence on tracks and easy trails. The brakes are hydraulic.
It weighs 23,8 kg in size M, less than the full-suspension E-EXPL 500 S. Decathlon warns it is not designed for intensive use in steep mountain terrain.
Pros
- Yamaha mid-drive motor
- 500 Wh integrated into the frame
- 29" × 2,4" wheels and 130 mm fork
- Catalogue price under 2.000 €
Cons
- 50 Nm: just enough on very steep ramps
- No rear suspension
- Basic 8-speed drivetrain
People starting out in electric mountain biking who want a mid-drive motor for under 2.000 €.
Tracks, dirt roads and easy trails with moderate climbs.
5,4 / 10 (estimated from the scores and the reference price).
How many km will you get?
Indicative estimate with our formula based on the 500 Wh battery (how we calculate it). Not a manufacturer figure; the manufacturer claims up to 80 km (little climbing).
Spec sheet
Each figure shows where it comes from: Official Decathlon or manufacturer, Press specialist media, Test independent test, Shop third parties. “—” means we have not found a reliable figure.
| Motor | ||
|---|---|---|
| Motor | Yamaha PW-CE | Official 1 |
| Motor position | Mid-drive (bottom bracket) | Official 1 |
| Rated power | 250 W400 W peak according to Decathlon | Press 2 |
| Motor torque | 50 Nm | Official 1 |
| Max. assisted speed | 25 km/h | Official 3 |
| Battery | ||
| Battery | 500 Wh | Official 1 |
| Removable battery | — | No data |
| Claimed range | up to 80 km (little climbing) | Official 1 |
| Charging time | — | No data |
| Frame & components | ||
| Weight | 23,8 kgSize M, without pedals | Official 1 |
| Frame | Hardtail, battery integrated into the down tube | Official 1 |
| Material | Aluminium | Official 1 |
| Suspension | Suntour XCM 130 mm fork | Official 1 |
| Brakes | Hydraulic disc | Official 1 |
| Drivetrain | Microshift, 8 speeds | Official 1 |
| Wheels | 29" × 2,4" | Official 1 |
| Sizes | S, M, L, XL | Official 1 |
Owner reviews
We do not yet have a reliable summary of owner reviews for this model. You can read them on the Decathlon product page.
Similar bikes
Compare themRockrider E-EXPL 700
29" hardtail with a 70 Nm Brose motor and 630 Wh battery: lots of range for long mountain rides.
- 70 Nm
- 630 Wh
- —
Rockrider E-EXPL 500 S
Decathlon's most affordable full-suspension bike with a mid-drive motor. A clear step up from a hardtail for trails with rocks and roots.
- 50 Nm
- 500 Wh
- 26,2 kg
Rockrider E-ST 100
The entry point to Decathlon's electric mountain bikes: hardtail, simple and the cheapest in the range. Perfect for tracks and dirt roads, not for technical trails.
- 42 Nm
- 380 Wh
- 21,5–22,5 kg depending on source and size


