Types of Ebike Motors:
We currently only offer ebikes with geared hub motors in the rear wheel. This will give you an overview of geared hub motors and how they work in our Roadster V2, CORE-5, 500 Series, 700 Series and LMT'D. We will also cover 2 other common types of motors. The mid-drive and the direct drive hub motor.
Soon (relative term) we will be releasing our Prodigy, a gorgeous Brose mid-drive motor that could not be smoother (Brose designs the motor, controller, display, and all settings for the torque sensor, so it is dialed in!). You can see the internals for this mid-drive below:
Geared hub motors: Provide good low end torque and hill climbing ability. Inside they will have internal gears, bearings, magnets and copper windings as you can see in this stator replacement video. They provide very little resistance, so whether you are coasting or utilizing the PAS or throttle, there will not be any excessive friction slowing you down.
Mid-drive motors: Like the one shown above, these motors have the best hill climbing ability. There are some things to be aware of though, with a mid-drive, it is more critical that you are in the correct gear. You can also cause excessive wear and tear on the chain if riding to aggressively and/or in the wrong gear. Since the chain and cassette is used by the mid-drive, if the chain breaks, you will be walking home. Where as hub motors do not use the chain, so you could power home if you still have some juice in your battery.
Direct drive hub motors: These motors are quiet and efficient once at speed and on flat ground. However, they are slow to accelerate and do not perform as well on hills. They are often larger and heavier than geared hub motors. Additionally, when coasting or pedaling with the bike off, there will be noticeable drag, On the flipside, these motors are capable of regenerative breaking (not all have it), but the battery gains seen as this time are relatively low. Many do not think the trade offs are worth it. These are the main reasons we only use Geared hub motors and Mid-drive motors at this time.
Motor Wattage Ratings
As the ebike industry grows and grows, standards are changing. Many companies used to list the nominal sustained wattage of the motor. Now more and more of them only list the peak and often do not list the brand of motor. Some of the more forthright companies will list the details in the specs, but it might further down and not noticed immediately on the model page where customers often do quick comparisons. We always strive to provide accurate information and will continue to do so. However, we must follow this trend some larger companies have created. We were reluctant to do so, however, in a quick comparison for customers shopping, we have to share the our specs in the same format that has become the industry standard. In order for proper comparisons to be made, we have simplified our motors rating. We confirmed with our suppliers of motors that they can be operated at these power ratings for a sustained period of time without issue.
- 500W Peak, 40nm torque Shengyi Geared Hub-Motor for the Roadster V2
- 750W Sustained, 60nm torque Shengyi Geared Hub-Motor (800W+ peak) for the CORE-5, 500 Series
- 750W Sustained, 60nm torque Bafang Geared Hub-Motor (800W+ peak) for the Cafe Cruiser, 700 Series
- 750W 100nm torque MXUS or AKM Geared Hub-Motor (750W nominal, 1000W peak) for the LMTD
- 250W 90nm torque Brose German Made TF Sprinter Mid-Drive Motor for the Prodigy
You will notice the new Prodigy has a 250W Mid-Drive motor, but it also has 90nm of Torque. Comparing a mid-drive wattage to a geared hub-motor is not apples to apples. If you want a better understanding of it, make sure you order in advanced this fall: https://ride1up.com/product/prodigy/
Another consideration to take is that whether you have the LMT'D, Cafe Cruiser, Prodigy, 700 Series, 500 Series or Core-5, all bikes will reach 28mph. So while one has more power available or higher wattage sent to the motor, the top speed is still the same.
If you want to learn more, you can review this 3rd party article: https://www.ebikeschool.com/myth-ebike-wattage/