The notion that a cargobike is simply a bicycle with a basket has, frankly, been out of date since 2005. Add a powerful enough battery, and the whole feel of the ride is transformed.
You're suddenly capable of tackling steep inclines, large amounts of groceries, carrying a small passenger in a child seat, and even pulling a charged-up electric bike cargo trailer, all without a drop in torque at the appropriate time, thanks to the battery having enough energy to allow for extended high-torque operation. That's the real tale of electric cargo bikes. It doesn't ride for you; it carries for you.
What Is An Electric Cargo Bike
A common question is 'what is an electric cargo bike?' The answer is basic; in essence, the frame has been engineered to carry a large load, with a longer wheelbase, stronger carrying platforms, and an electric motor to power the vehicle as opposed to a rider.
For a normal commuter, stability and a low center of gravity were less of a concern, with a focus on the delivery of power over an extended period. The reason why parents of young children, owners of local shops, and those who deliver locally have started switching from a car to a cargo electric bike for shorter trips.
Why High Battery Output Changes Everything
Battery output is in watt-hours and is the amount of work the bicycle is capable of before needing a charge. A larger battery alone doesn't give the motor more torque, but it does give the controller the capability to feed high current for a longer period without dropping voltage.
When starting a 30kg load at rest on the back rack, this will maintain peak torque across the intersection as opposed to a three-second loss of peak torque as the current output is dropped by voltage sag.
For cargo ebikes this is more important than the top speed of the motor. When towing a load, the motor needs to apply a sustained pull. This is very taxing on hills, into the wind, or even on flat ground, with the motor providing consistent power when balancing a loaded electric bike with cargo. Daily users of cargo bikes with electric assist see a substantial benefit during the second or third trip out, after a small battery would be depleted.
How Battery Capacity Translates To Towing Power
Another perspective is to view the battery as an engine to provide torque. A cargo bike electric system in the 600Wh+ range will be capable of its rated support for more than an hour of riding when loaded. This lasting support enables a small frame to pull a trailer, ascend a 15% slope, or quickly accelerate away from the lights with two children.
Manufacturers combine this with torque sensors, meaning that the more force you apply, the more the motor assists, but the motor would start to run out of energy if it didn't have a sufficient energy reserve built up. As such, it is important for all current electric bike cargo designs to focus on cell quality and heat management.
Key Features To Look For In Electric Cargo Bikes
As you buy your electric cargo bikes, don't be too swayed by images; a cargo bicycle should be built with an enhanced rear rack, good wheels, and good brakes (hydraulics should be used). You should also ensure it has a battery that can be detached and plugged in for charging indoors. The synergy between these components is what will enable safe riding.
Since the cargo ebikes market is expanding very quickly, you'll find cargo bikes from longtails and mid-tails to front loaders. The consistent trend across them all is that "actual range with load" outweighs the stated "lab tested" number. An e-bike that is 120 kilometers empty may have 80 kilometers with bags of groceries and a child seat; that is still very good if the output does not taper.
Cargobikes That Show Battery Power In Action
The focus of ENGWE's cargo range is the high-output batteries and legal EU motors. This, in turn, brings the bikes into play for actual towing, with EU legislation not being an issue.
1. ENGWE L20 Boost
The ENGWE L20 Boost features a removable 13Ah, 624Wh battery (126km claimed range at PAS 1) powered by a 48V, 250W hub motor restricted to 25 km/h. The key differentiator here is the 'Boost' button, which provides an injection of 75 Nm of torque for climbing up to 17.8% grade inclines.
The rear rack is robust and rated for 25kg for cargo duty, and the front basket capacity is 10kg. Having the combination of high watt-hours with low-speed bursts of torque at stop-start is the exact thing a cargobike needs when loaded.
2. Rad Power Bikes RadWagon 5
On the Rad Power Bikes RadWagon 5 is a 720Wh Safe Shield battery pack powered with 90 Nm of motor torque. Large packs like that are why it's commonly ranked among the best electric cargo bikes in North America for those hauling two children and groceries.
3. ENGWE L20 3.0 Boost
The ENGWE L20 3.0 Boost has an upgraded 48V 13.5Ah battery, which is 648Wh, powered by Samsung 21700 cells.
While in the lab, it was tested to reach 135km on one charge, it retains the 75 Nm max torque on the rear hub motor that gives it a natural pedaling feel thanks to the torque sensor, while staying a 250 W system with a top speed of 25 km/h, allowing it to be legal in the EU.
The bigger battery allows it to maintain that torque for longer when using it as an electric cargo bike for family tasks or shopping trips. Its full suspension and foldability make it a real contender for the best cargo ebike for apartment dwellers who are looking for a compact electric cargo bike.
4. Tern GSD S10 LX
For an alternative to the Tern GSD S10 LX, there is the Bosch Cargo Line motor up to 85 Nm and a 500 Wh battery, which is able to be used twice for extra range. The tight, longtail design of this bike makes it one of the most loved, best cargo electric bikes for people to use in the city, as it can be stored upright but still has decent cargo capacity.
5. ENGWE L20 3.0 Pro
The ENGWE L20 3.0 Pro comes with a robust 48V 15Ah battery for the most endurance possible, especially for towing, and this battery will give you 160km in PAS 1 (tested in the lab). The power comes via a 250W mid-drive motor that boasts 100Nm of torque, excellent for those constant, uphill tugs when carrying an extra load, as mid-drives are designed to take maximum advantage of the gear ratios.
If comparing the best electric cargo bike models for day-long towing potential, this is an instance where the greater battery output directly translates to a longer on-road towing session without the need to top up halfway through.
Choosing The Best Electric Cargo Bike For Your Needs
Before searching for the optimal e-cargo bike, be truthful regarding what you intend to haul. Should you plan on using your cargo bike with a backpack and for infrequent grocery runs, a 600Wh battery will be sufficient on a compact electric cargo bike. If you foresee yourself towing a trailer frequently, hauling a couple of kids, or carrying 40 kilograms uphill, then 650 Wh - 720 Wh and higher is what you want.
People looking for an electric cargo bike for sale may find the specifications very complex and get lost. Let's select only three things: the real continuous power of the battery at full load, the torque of the motor, and the maximum carrying load of the frame and racks. The best cargo electric bike for the job must give a real range (not just lab data) and present how the battery acts at PAS 3 or 5.
An electric cargo bike for families should have a low step-through, 20" stable wheels, and be fully fitted with lights. The business user would want cargo bikes with electric assist that have fast charging, such as 8A, which recharge in under 2 hours, enabling quick turnaround times between deliveries.
If you're looking up electric bikes cargo options on the internet, a proper cargo bike electric frame always needs to be about torque and not about top speed.
Frequently Asked Questions
How Does Battery Size Affect Towing On A Cargobike?
How Does Battery Size Affect Towing On A Cargobike?
Higher Watt-hour ratings allow for the motor to stay in its max power current for longer before it overheats and/or the voltage doesn't sag. So your cargobike can still pull up the same hill at the end of a ride as it can at the beginning of a ride, important for pulling a trailer:
Is A Mid-Drive Better Than A Hub For Cargo?
Is A Mid-Drive Better Than A Hub For Cargo?
Engines like mid-drive, found on the ENGWE L20 3.0 Pro, utilize the bicycle's gears, therefore having better acceleration at loads. Hub motors equipped with boost functions, like the ENGWE L20 Boost, provide immediate pull at the city's stops. Both systems work efficiently given that they are accompanied by a high-capacity battery.
What Range Can I Expect With A Loaded Electric Cargo Bike?
What Range Can I Expect With A Loaded Electric Cargo Bike?
A reasonable expectation for load is between 60-85% of the lab figure. If the bike is, for example, a 648 Wh machine with a 135 km range (no load), expect 85-100 km loaded and frequent starting/stopping, which is still very adequate for most needs.
Can I Use An Electric Bike Cargo Trailer With These Models?
Can I Use An Electric Bike Cargo Trailer With These Models?
Yeah. As long as it doesn't exceed the total system weight (normally 150K on these models), a trailer is perfectly fine. High battery output means the motor won't strain at the start-up with the increased rolling weight.
Where Can I Find A Reliable Electric Cargo Bike For Sale?
Where Can I Find A Reliable Electric Cargo Bike For Sale?
Begin with the manufacturer directly, which typically posts specs and warranty info fully. The ENGWE cargo lineup includes these three Boost models we've mentioned, and the current models have been modified to meet existing European regulations that have deleted the old high-power ads.
