Introduction:
The EMotorad T-Rex Air is a lightweight-oriented electric bike designed for riders who want the practicality of a regular bicycle with the convenience of electric assistance. It is aimed at daily commuters, fitness riders and people looking for an easier way to cover city distances. With a 250W rear hub motor, removable lithium-ion battery, seven-speed gearing and front suspension, the T-Rex Air offers a balanced package for everyday riding.
Voltebyk Laux Premium Electric Cycle
Electric bicycles are becoming increasingly popular in India as riders look for affordable and convenient alternatives for short-distance travel. Unlike electric scooters, e-bikes can be pedalled normally, allowing riders to combine exercise with motor assistance. The T-Rex Air follows this approach and offers multiple assistance levels for riders who want to control how much electric power they use.
One of the main highlights of the T-Rex Air is its 250W rear hub motor. The bike has a claimed top speed of 25 km/h, making it suitable for city commuting and recreational riding rather than high-speed travel. The motor provides additional assistance during acceleration, climbs and longer rides, while the rider can continue pedalling normally whenever required.
The battery is also designed with convenience in mind. Current Indian specifications list a 0.37kWh lithium-ion battery, while the T-Rex Air is advertised with a claimed range of up to 50 km per charge. The battery is removable and supports battery swapping, which can make charging easier for people who cannot park the entire bicycle near a power socket.
The T-Rex Air also includes a seven-speed Shimano drivetrain, front suspension and disc brakes on both wheels. These features make it more versatile than basic single-speed electric cycles, especially for riders who travel on roads with inclines or uneven surfaces.

T-Rex Air Electric Bike Price in India
The current EMotorad website lists the T-Rex Air at ₹47,999, while BikeDekho currently lists the model from ₹36,999 in India. The difference reflects retailer pricing, promotions and potentially different listings, so buyers should check the final selling price before purchasing.
| Model | Price in India |
|---|---|
| EMotorad T-Rex Air | ₹36,999 onwards* |
| Official EMotorad listing | ₹47,999* |
*Prices can vary depending on retailer, location, stock and promotional offers.
T-Rex Air Full Specifications
| Feature | Specification |
| Type | Electric Bike |
| Motor | 250W Rear Hub Motor |
| Battery | 0.37kWh Lithium-ion |
| Battery Capacity | 10.2Ah |
| Claimed Range | Up to 50 km |
| Top Speed | 25 km/h |
| Gears | 7-Speed Shimano |
| Suspension | 100mm Front Fork |
| Brakes | Front & Rear Disc |
| Frame | High-Tensile Steel |
| Wheel Options | 27.5-inch / 29-inch |
| Tyres | Nylon |
| Display | Digital |
| Headlight | LED |
| Pedal Assist | Yes |
| Battery | Removable / Swap Capable |
| Charging Time | Around 4–5 hours |
| Kerb Weight | Around 22.38 kg |
Specifications can vary slightly by wheel-size version and market.
Design and Build Quality
The T-Rex Air uses a mountain-bike-inspired design with a high-tensile steel frame. It is available in different wheel sizes, including 27.5-inch and 29-inch versions, giving riders more choice depending on their height and preferred riding style.
The larger wheels are useful for riders who want better momentum and stability, while the 27.5-inch version can feel more manageable for some riders. The overall design remains practical rather than overly bulky, allowing the T-Rex Air to work as both a commuter and recreational bicycle.
At around 22.38 kg, it is heavier than a conventional non-electric bicycle but remains reasonably manageable for an electric bike with a motor and battery.
Motor and Performance
The T-Rex Air is powered by a 250W rear hub motor with a claimed top speed of 25 km/h. The motor is designed to provide assistance rather than turn the bicycle into a high-speed vehicle.
For normal city riding, the motor should provide useful assistance when starting from traffic lights, climbing moderate inclines or travelling longer distances. The rider can also continue pedalling to reduce battery consumption.
The seven-speed Shimano drivetrain is particularly useful because it gives riders more control over pedalling effort. Lower gears can make climbing easier, while higher gears are useful when riding at greater speeds on flat roads.
Battery and Range
The T-Rex Air uses a 36V 10.2Ah lithium-ion battery, with current specifications listing approximately 0.37kWh of battery capacity. EMotorad and current listings advertise a range of around 50 km under suitable conditions.
Actual range will depend on several factors. Rider weight, terrain, tyre pressure, weather, speed and the selected assistance level can all affect battery consumption.
A rider who uses pedal assist and contributes more pedalling effort may achieve better efficiency than someone who relies heavily on motor power. For this reason, the 50 km figure should be considered a claimed range rather than a guaranteed distance for every rider.
For daily commuting of around 10–20 km, the battery should provide useful flexibility, especially when charging is available at home or work.
Charging and Removable Battery
The listed charging time for the T-Rex Air is approximately 4–5 hours, with a 2A charger. The battery is removable and supports swapping, adding convenience for users who need to charge the battery away from the bicycle.
The removable design is particularly useful for apartment residents or office commuters who may not have access to a power outlet where the bike is parked.
For regular commuters, charging overnight is a simple way to keep the bicycle ready for the next day’s journey.
Suspension and Ride Comfort
The T-Rex Air features a 100mm-travel front suspension fork, which helps absorb bumps and vibrations on uneven roads.
This can be particularly useful on Indian city roads, where potholes, broken surfaces and speed breakers are common. The suspension also improves comfort during longer rides.
The combination of suspension and larger wheels makes the T-Rex Air suitable for urban roads as well as light recreational riding.
Braking and Safety
The bike uses disc brakes on both the front and rear wheels. This gives riders stronger stopping control than a basic rim-brake system and is useful when riding through busy streets.
The T-Rex Air also includes an LED headlight and digital instrumentation. These features make the bike more practical for everyday commuting, especially when riding during lower-light conditions.
Digital Display and Riding Modes
The T-Rex Air comes with a digital display that provides information such as speed and battery status. It also supports multiple riding modes and pedal assistance.
The pedal-assist system allows riders to choose how much support they want from the motor. This can be useful when switching between exercise and effortless commuting.
The bike’s seven-speed drivetrain works alongside the electric assistance, giving riders greater control over both physical effort and battery usage.
T-Rex Air Range in Real-World Riding
The claimed range of the T-Rex Air is up to 50 km per charge.
In actual use, the range can be lower depending on how the bike is ridden. Heavy throttle or high assistance use, steep roads, strong winds and heavier loads can increase battery consumption.
Owner reports also show that real-world range varies, with some riders reporting around 40–50 km depending on their riding conditions and use of pedal assistance.
Therefore, buyers who need a guaranteed 50 km every day should leave some additional battery margin rather than planning their commute around the maximum claimed figure.
T-Rex Air 27.5 vs 29
The T-Rex Air is offered in 27.5-inch and 29-inch wheel versions. Both are designed around the same general electric-bike concept, but wheel size can affect handling and rider fit.
| Feature | T-Rex Air 27.5 | T-Rex Air 29 |
| Wheel Size | 27.5-inch | 29-inch |
| Motor | 250W | 250W |
| Top Speed | 25 km/h | 25 km/h |
| Claimed Range | Up to 50 km | Up to 50 km |
| Gears | 7-Speed | 7-Speed |
| Suspension | 100mm Front | 100mm Front |
| Brakes | Disc | Disc |
The right version depends mainly on rider height, comfort and preferred handling rather than a major difference in motor performance.
Pros and Cons
Pros
- 250W rear hub motor
- Up to 50 km claimed range
- Removable battery
- Seven-speed Shimano gearing
- 100mm front suspension
- Dual disc brakes
- 27.5-inch and 29-inch options
- Digital display
- LED headlight
- Pedal-assist support
Cons
- Real-world range can be lower than the claimed figure
- Around 22 kg, so heavier than a regular bicycle
- Charging takes several hours
- Pricing varies significantly between retailers
T-Rex Air vs Typical Electric Bike
| Feature | T-Rex Air | Typical Budget E-Bike |
| Motor | 250W Hub | 250W |
| Battery | 10.2Ah | 7.8–10.4Ah |
| Claimed Range | Up to 50 km | Around 30–50 km |
| Top Speed | 25 km/h | Around 25 km/h |
| Gears | 7-Speed | Single/Multiple |
| Suspension | 100mm Front | Varies |
| Brakes | Dual Disc | Disc/Rim |
| Battery | Removable | Varies |
Frequently Asked Questions
What is the price of the T-Rex Air Electric Bike in India?
The T-Rex Air is currently listed from around ₹36,999, while the official EMotorad website shows a price of ₹47,999. Retail pricing can change with offers and availability.
What is the range of the T-Rex Air?
The claimed range is up to 50 km per charge. Actual range depends on rider weight, terrain, speed and electric-assistance usage.
What is the top speed of the T-Rex Air?
The claimed top speed is 25 km/h.
What motor does the T-Rex Air use?
It uses a 250W rear hub motor.
Does the T-Rex Air have gears?
Yes. It comes with a seven-speed Shimano drivetrain, giving riders more flexibility on flat roads and inclines.
Does the T-Rex Air have a removable battery?
Yes. The lithium-ion battery is removable and supports battery swapping.
Is the T-Rex Air good for daily commuting?
Yes. Its 250W motor, seven-speed gearing, front suspension, disc brakes and claimed 50 km range make it a practical option for daily city commuting.
Final Verdict
The EMotorad T-Rex Air is a well-rounded electric bike for riders who want a combination of everyday practicality and bicycle-like riding. Its 250W rear hub motor, seven-speed Shimano gearing, 100mm front suspension, dual disc brakes and removable battery give it a useful feature set for urban commuting.
Its claimed 50 km range makes it more suitable for longer daily journeys than many entry-level electric cycles. The seven-speed gearing is another advantage, particularly for riders who encounter inclines or want to continue pedalling actively.
The main points to consider are its weight and variable pricing. At around 22.38 kg, it is not as light as a normal bicycle, while the difference between current retailer and official pricing means buyers should compare offers before purchasing.
Overall, the T-Rex Air is a strong option for commuters and recreational riders looking for a practical electric bike with decent range, gears, suspension and a removable battery.






