SUNNIGOO M2 250W Electric City Bike for Adults | 36V 13Ah, 27.5" Wheels, 7-Speed, 25 km/h

Built Around the Same Drivetrain as the M1 — With a Lighter Look

The M2 uses the same 36V 250W drivetrain, the same 36V 13Ah removable battery and the same Shimano 7-speed gearing as the M1, dressed in a lighter colour palette for riders who want their bike to look like a bike. A 27.5-inch wheel with a 2.1" puncture-resistant tire keeps rolling resistance low, which matters more than peak watts when you are riding 8 km to work every morning.

The frame is aerospace-grade aluminium — light enough to lift onto a train, stiff enough to stay composed at 25 km/h. The suspension fork and mechanical disc brakes are the same specification as the M1, and the M2 is rated to the same 120 kg.

Why Riders Choose the SUNNIGOO M2

What you get	What it means for you
36V 250W rear hub motor (42 N·m)	Enough torque for a 20° climb and enough headroom to hold 25 km/h into a headwind — without the weight penalty of a mid-drive.
36V 13Ah (removable), removable	Identical 13Ah pack to the M1 — about 60–80 km of assisted riding, removable in seconds with the supplied key.
Speed sensor	Reliable, simple and cheap to service — assistance engages the moment you start pedalling.
Shimano 7-speed gearing	You choose the cadence, the motor handles the load. On the flat you can ride above the assist cut-off with almost no battery used.
Mechanical disc brakes, front and rear	Linear, predictable stopping in the wet — the single biggest safety upgrade over V-brake city bikes.
Full-size 27.5 × 2.1" tires	Bigger contact patch and lower rolling resistance than 20" folding e-bikes. Puncture-resistant casing, city-tread.
Aerospace-grade aluminium frame	Light enough to carry up stairs, rated to 120 kg, and sized for riders from 155 cm to 185 cm.
EN 15194 pedal-assist	No licence, no insurance, no registration — legally a bicycle across the EU, the UK and Switzerland.

SUNNIGOO M2 Full Specifications

Motor	36V 250W brushless rear hub, 42 N·m
Battery	36V 13Ah (removable)
Assist sensor	Speed sensor
Top assist speed	25 km/h (EU / UK legal pedal-assist cut-off)
Assist range	60–80 km per charge
Frame	Aerospace-grade aluminium alloy, step-over
Front suspension	Suspension fork with 80 mm travel
Gears	Shimano 7-speed
Brakes	Mechanical disc brakes, front and rear
Tires	27.5 × 2.1" puncture-resistant
Display	Colour LCD, left-hand mount
Assist modes	3 levels, pedal-assist (no throttle)
Lights	LED headlight
Max load	120 kg
Rider height	155–185 cm
Bike size	179 × 68 × 112 cm
Weight	25 kg net / 31 kg gross
Carton	148 × 25 × 84 cm
Folding	No
Assembly	90% pre-assembled; hex keys and wrenches included

Is the M2 Legal to Ride in Europe?

Yes. The M2 is built as an EPAC (Electrically Power Assisted Cycle) under EN 15194. That means:

• Motor rated 250 W continuous—the ceiling for a pedal-assist bicycle in the EU and the UK.
• Assistance cuts off at 25 km/h, and the motor only runs while you are pedalling.
• No throttle, so no moped classification: no licence, no insurance, no number plate.
• Ride it on cycle paths, in bus lanes and on the road exactly like an ordinary bicycle.

Note: national rules vary in detail (for example, some countries require a bell or reflectors, and Germany treats EPACs as bicycles under the eKFV). Always check your local traffic code before riding.

What’s in the Box

• Charger × 1
• User manual × 1
• Hex key set × 1
• Open-end wrench × 2
• Pedals × 2 (L/R)
• Lubricant × 1

The bike arrives 90% assembled. Fit the pedals, straighten the handlebar, charge the battery and you are riding — most riders are done in 15 to 20 minutes.

Frequently Asked Questions

How far can the M2 go on one charge?

Around 50–80 km of assisted riding, depending on your weight, the terrain and which of the three assist levels you use. Flatter routes in level 1 will sit at the top of that range; hilly commutes in level 3 at the bottom.

Does it have a throttle?

No. The M2 is pedal-assist only — the motor adds power while you pedal. That is what keeps it a legal bicycle in Europe rather than a moped.

Can I ride it with the battery empty?

Yes. With the battery removed or empty the M2 rides like a normal 25 kg city bike, and the Shimano 7-speed gearing lets you gear down for hills.

What rider height does it fit?

The saddle is adjustable across a 155–185 cm rider range, and the frame is rated to a 120 kg total load including luggage on the rear rack.

Is the battery removable?

Yes — the 36V 13Ah (removable) pack is integrated into the down tube and comes out with a key, so you can charge it indoors or at your desk.

What colours are available?

Black is stocked and ready to ship. Sky Blue is available on request — pick Black at checkout and message us if you would prefer Sky Blue.

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SUNNIGOO M2 — electric city bike for adults. 36V 250W rear hub motor, removable lithium battery, Shimano 7-speed, 27.5" wheels, front suspension and disc brakes. Shipped from our EU warehouse with fast local delivery and local returns.