GUNAI GN29 Electric Mountain Bike 750W – Review & Comparison

The GUNAI GN29 is a 29-inch electric mountain bike powered by a 750W brushless motor. With its 48V 15Ah lithium-ion battery, Shimano 21-speed transmission and front suspension fork, it's designed to deliver a smooth, powerful riding experience on all terrains, from forest trails to technical singletrack.

Who is this bike for?

This model is particularly suited to:

• Riders seeking a powerful electric mountain bike at a competitive price point (€998)
• Cyclists tackling off-road, trails and nature outings
• People wanting large 29-inch wheels for speed and obstacle clearance
• Beginner to intermediate users after a reliable bike with a full spec

Performance and range

The GUNAI GN29 features a 750W brushless motor capable of reaching a maximum speed of 50 km/h, ideal for dynamic off-road outings. The 48V 15Ah lithium-ion battery (720 Wh) delivers an estimated range of around 50 km on full power, with a complete charge in 6 to 7 hours.

• Range on full power: approximately 50 km
• Maximum speed: 50 km/h
• Full charge time: 6 to 7 hours

Actual range varies depending on:

• Rider weight and cargo
• Assistance mode used
• Terrain (flat, climbing, technical trails)
• Weather conditions and tyre pressure

Strengths

✔ 750W brushless motor for generous off-road power
✔ Large 29-inch wheels for speed and easy obstacle clearance
✔ Smooth, precise Shimano 21-speed transmission
✔ Removable 48V 15Ah battery (720 Wh) with safety lock
✔ Multiple battery protections (overcharge, overdischarge, overvoltage, temperature)
✔ Front suspension fork to absorb shocks
✔ Disc brakes for reliable all-weather stopping power
✔ Competitive price for the spec level offered (€998)

Weaknesses

❌ 750W power: not homologated for European public roads (Off-road)
❌ Weight not disclosed by manufacturer
❌ Maximum load not specified in technical sheet
❌ Assistance sensor not specified (cadence or torque unknown)
❌ Relatively unknown brand in Europe, limited service network

Comparison and positioning

The GUNAI GN29 sits in the entry to mid-range electric mountain bike segment around €1,000. It offers an interesting combination: 750W motor, 29-inch wheels and Shimano 21-speed transmission at a reasonable price. It's good value for off-road riders who don't need road homologation.

Against rivals like Shengmilo or Euybike at similar prices, the GN29 stands out with 29-inch wheels — rare at this price point — and UL battery certification. However, the absence of weight and maximum load data in the official spec sheet may deter some demanding buyers.

⚠ Homologation note: The GUNAI GN29 is fitted with a 750W motor and reaches a maximum speed of 50 km/h. These specs exceed EU EPAC directive thresholds (250W / 25 km/h). This bike is therefore classed as Off-road and cannot be legally used on public roads in Europe without appropriate registration. It is intended for private land or authorised trail use only.

This bike is for you if?

✔ You're after a powerful electric mountain bike under €1,000
✔ You ride mainly off-road, on trails and tracks
✔ You appreciate 29-inch wheels for extra comfort and speed
✔ You want a Shimano 21-speed transmission at this price
✔ Road homologation isn't a priority for you

This bike is NOT for you if?

❌ You need a road-legal bike for public roads in Europe
❌ You're after a lightweight or easy-to-carry bike
❌ You need full technical specs (weight, max load) before buying
❌ You want a brand with an established European service network
❌ You plan daily urban city commuting