EMotorad T-Rex Air 29 - Text Review

The high-tensile steel frame gives the T-Rex Air 29 a sturdy backbone. The 29-inch wheelset adds to ride stability and helps roll over cracks, potholes and mild trail irregularities more easily than smaller wheels.

The steel frame does mean a bit more weight compared to aluminium but contributes to rugged feel. Fit and finish are adequate. One user noted the frame size felt somewhat large for their height despite the large wheels.

The 7-speed Shimano TY300 (or equivalent) gives solid gear options for everyday use. Paired with the 250 W hub-motor (rear) and pedal assist, the performance is more than adequate for commuting, slight inclines, and casual off-road.

Overall, if you ride primarily urban with occasional rough patch, the drivetrain works well. Serious trail-riding or steep downhill might push its limits.

The 100mm front fork suspension paired with 29-inch wheels gives a ride that balances comfort and efficiency. On smoother tarmac you’ll feel efficient; on rougher roads you’ll appreciate the buffer.

“Suspension is ok, but not great … it does give you elbow pain after some time.”
Also, the battery weight comes into play when the motor isn’t assisting. Pedalling bare—without motor—feels heavier than a non-e-bike.

Mechanical disc brakes front and rear with auto cut-off enhance safety and control. They work well in normal dry conditions and typical mixed use. Users say braking is dependable up to 25 km/h—which is the motor-assisted top speed.

In heavier/muddy/wet conditions, mechanical discs require more care than hydraulic systems. But given price-point and usage mode, this is an acceptable trade.

Wheels: double-wall alloy rims (in some specs “double-wall aluminium alloy rims”) give strength and durability.

Tyres: 29″ (for the variant) deliver a good blend of speed and grip. Weight: ~22.4 kg — relatively moderate for an e-cycle with motor & battery. Load capacity ~110 kg.

Battery: 36 V / 10.2 Ah (≈ 0.37 kWh) removable lithium-ion.

Claimed range: ~50 km per full charge in PAS mode.

Charging time: ~3-5 hours.

So for daily commutes (10-20km one way), this bike offers enough margin. For longer rides you might need a backup plan or lower assist mode to conserve battery.

“With speeds under 25 km/h at all times… on pedal assist … can easily deliver 45 km of range.”