The G-FORCE ZM is a mountain e-bike with a 960 Wh battery. That battery is 33% above the median for its type. It also has a hub motor with 86 Nm of torque. The price is 1399 USD, which is 26% below the median of 1899 USD.
This bike suits riders who want a large battery and a low price. It is a fast class e-bike, with assist above 25 km/h. It is not foldable and has no throttle. It is not step-through and not cargo capable.
What the numbers say
| Spec | This bike | Median for its type |
|---|---|---|
| Battery | 960 Wh | 720 Wh |
| Weight | 34.5 kg | 28.1 kg |
| Torque | 86 Nm | 80 Nm |
| Estimated range | 55 km | 42 km |
| Price | 1399 USD | 1899 USD |
The G-FORCE ZM has a battery that is 33% above the median. Its weight is 23% above the median. Torque is 8% above the median. Estimated range is 31% above the median. Price is 26% below the median.
Questions people ask about the G-FORCE ZM
How much does it weigh?
The G-FORCE ZM weighs 34.5 kg. That is 23% above the median of 28.1 kg for mountain e-bikes. It is a heavy bike. You may feel it when lifting or maneuvering.
How much torque does it have?
The motor delivers 86 Nm of torque. That is 8% above the median of 80 Nm. It is a hub motor. Torque helps with acceleration and climbing.
What speed class is it?
It is a fast class e-bike. Assist works above 25 km/h. Top speed is 45 km/h. Check local rules for fast e-bikes.
How far does it really go?
The manufacturer claims 129 km. MathBikes estimates 55 km, with a band of 48 to 61 km. That estimate is 57% below the claim. The estimate comes from a formula, not a test. Use the range calculator to adjust for your ride.
What does it cost to run?
The price is 1399 USD. Running costs depend on electricity and maintenance. The warranty is not listed. Use the cost calculator to estimate long-term costs.
Where it falls short
The G-FORCE ZM is heavy. At 34.5 kg, it is 23% above the median. That weight can make it hard to carry or ride on trails. The estimated range is 55 km, far below the claimed 129 km. The manufacturer does not list a warranty.
Who should buy it
This bike fits riders who want a large battery and a low price. It is for those who can handle a heavy bike. It is for riders who understand that real range is lower than claimed.
- You want a battery that is 33% above the class median.
- You want a price that is 26% below the class median.
- You need a fast class e-bike with a top speed of 45 km/h.
Look elsewhere if you need a light bike. Look elsewhere if you want a throttle or a step-through frame. Look elsewhere if you require a published warranty.
