Merida eSilex 400
Pedal-assist, rated to 250W, assist cuts at 25 km/h. Declared by the brand; declaration not independently sighted.
Merida eSilex 400 (2027) at a glance
The Merida eSilex 400 is a commuter e-bike sold in Australia at $4,299 (price checked 9 Oct 2026). It pairs a MAHLE X30 hub drive motor with 45Nm of torque, a 237Wh battery, 700c, Schwalbe G-One Comp 45mm wheels. It is listed as a 250W pedal-assist e-bike limited to 25 km/h for Australian roads.
Is it for you?
Best suited to
Gravel and fitness riders who want a light assist that feels like a normal bike.
Standout strength
A light MAHLE hub system, carbon fork and Shimano GRX on an alloy gravel frame.
The main compromise
A small 237Wh battery and modest 45Nm, so it is not for heavy loads or steep climbs all day.
Full specification
Drive and power
Frame and ride
Australian compliance
Pedal-assist, rated to 250W, assist cuts at 25 km/h. Declared by the brand; declaration not independently sighted.
eSilex 400 vs eBIG.TOUR 675 EQ
| Merida eSilex 400 | Merida eBIG.TOUR 675 EQ | |
|---|---|---|
| Price | $4,299 | $4,449 |
| Motor | MAHLE X30, hub drive | Shimano STEPS EP6, mid drive |
| Torque | 45 Nm | 85 Nm |
| Battery | 237 Wh | 750 Wh |
| Claimed range | TBC | 75 km |
| Weight | TBC | 25.6 kg |
| Frame | Aluminium gravel frame (eSilex AL-A IV) | Aluminium low step-through trekking hardtail |
| Wheels | 700c, Schwalbe G-One Comp 45mm | 29 inch |
| Category | Commuter | Commuter |
| Availability | In stock | Clearance, run-out stock |
Choose the eSilex 400 if
it costs $150 less; its hub motor means less drivetrain wear and simpler servicing; it is listed as in stock now.
Choose the eBIG.TOUR 675 EQ if
its battery is 513 Wh bigger, so you charge less often on long rides; it has 40 Nm more torque for steep hills and heavy loads; its low step frame is easier to get on and off; its mid-drive motor works through the gears, which feels more natural on climbs.
How you would ride it
Merida
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Common questions
How much does the Merida eSilex 400 cost in Australia?
The Merida eSilex 400 is listed at $4,299 (99 Bikes sale price against a stated full price of $4,499.). eBikeFinder checks pricing against manufacturer and distributor information, and prices can change with sales and stock. This price was last checked on 9 Oct 2026.
Is the Merida eSilex 400 road legal in Australia?
Yes. The Merida eSilex 400 is a 250W pedal-assist e-bike that stops assisting at 25 km/h, which meets the road-legal e-bike standard in every Australian state. Compliance is asserted by the brand rather than independently verified, so confirm the current spec with the seller.
What motor does the Merida eSilex 400 have?
The Merida eSilex 400 uses a MAHLE X30 motor, in a rear hub position, producing 45Nm of torque.