Two-thousand-watt motors are extremely powerful. Most e-bikes' conversion kits fall within the 500 to 1000 watt capacity range. Even kits in the 500 to 1000w category feel very capable. GOSHET's 72-volt, 2000W conversion kit (yes, two thousand watt!) skips right over the lower-capacity kits and goes straight to the highest level of capability.
That being said, this kit is unique because of its 72-volt system. A higher voltage allows the motor to send more amps (current) down thinner wires. In terms of actual performance, that equates to sustained horsepower, versus just burst horsepower. If you're currently running a 48-volt kit and wonder why you can't get any "oomph" from your ride, then this is exactly where you need to look.
Again, I have not built this specific kit myself, therefore, please view all of the below information strictly as a break-down of what the manufacturer claims this kit is equipped with, and how it would likely integrate into your build, not as a first-hand account of what it is like to ride the kit. As such, I'll provide an honest assessment of what I know about the specifications of the kit, how the components fit together in a standard build, and if the claimed specifications align with the price of the kit.
Specs and Build Quality
At the core of this kit is a 2000w direct-drive toothless rear hub motor. The significance of the toothless motor lies in the fact that geared motors utilize nylon gears that ultimately wear out and will need to be replaced. Because of their design, direct drive toothless motors have virtually no mechanical failure points. They are preferred by many long-time high-powered e-bikers due to this. Torque output is at 60Nm. Speed is approximately 560 rpm. While that is slightly above-average for a hub motor, there are some compromises made in exchange for higher speed. You give up a bit of low-end grunt for top speed. This type of rider prefers to get somewhere quickly. The 60Nm of torque output is acceptable for a 2000-w motor. Therefore, it should be able to move a standard bicycle along relatively easily.
The aluminum rim is sized for a 27.5-inch wheel. Aluminum rims weigh less than steel rims and while a 2000-w motor is obviously heavy, this helps to offset that somewhat. Be prepared for increased weight on the back when you start riding.
Included in this kit is a multifunctional LCD display. It displays your speed, miles traveled, and error codes. Error codes during rides are truly valuable. Instead of trying to guess why something stopped working during a ride, you receive a code. Additionally, the display offers 9 levels of pedal-assist and a cruise-control feature. This adds some convenience features to your e-bike experience.
The GOSHET conversion kit includes the motor wheel, controller, handlebars, controller bag, and installation manual. The kit provides everything necessary for building a basic system. Click here to see the entire contents of the kit.
Installation and Compatibility
This kit uses a rear-wheel configuration which is generally considered to be more popular among high-power systems. The motor replaces your original rear wheel, and the controller attaches to your frame or rack. Rear-wheel configurations allow for lighter front ends and better handling characteristics at high speeds.
Be aware that the rim is 27.5 inches in diameter which represents a happy medium between a 26 and 29 inch rim. Please check your frame clearance, as well as the width of your dropouts before purchasing this product. Hub motors are essentially torque arms. If your frame was not designed for one, be prepared to spend money on additional hardware such as torque arms or other supporting structures.
The kit does include a controller. However, this eliminates an additional expense associated with having to find a compatible controller separately. Also included in this kit is a pedal-assist sensor which will enable you to use both throttle and pedal assist modes instead of relying solely on throttle mode. Using both types of assistance creates a more natural-feeling riding experience and extends battery life.
Also included in this kit is a seven-speed flywheel. Your rear gears remain unchanged since the flywheel uses your existing derailer setup. This simplifies the process of installing your new motor.
As mentioned previously, however, the greatest consideration when choosing this kit may be its 72-volt system. More often than not, e-bike enthusiasts already possess either 48-volt or 52-volt packs. Since this kit requires a 72-volt pack, you will need to either purchase or create one yourself. The controller provided is compatible with a 72-volt pack, however, you will need to obtain a matching pack and charger. Consider this cost when determining whether or not this is the best option for you.
What Amazon Reviewers Are Saying
There are only sixteen reviews posted thus far for this product and it has an average rating of three-and-a-half stars. That constitutes a mixed opinion and I'm not going to soften that reality for you. Due to the limited amount of reviews (only sixteen), if one reviewer posts a negative comment about their experience with this kit, they can drag down the overall average significantly. I don't believe we can consider this a tested kit yet based upon such a small sampling size.
Many comments focus on specs rather than reliability after extended periods of usage. Commentators praise the 2000w motor and the included controller as major selling points for this kit. Considering its price point, receiving an entire kit including display and pedal-assist sensor for that price is a very competitive offer. Concerns primarily relate to obtaining a 72-volt battery. Many reviewers stated finding a 72-volt battery would be their biggest challenge when using this kit.
Additionally, several reviewers mentioned difficulties with documentation and fitment issues related to assembling their bikes. Documentation for inexpensive kits are always subpar. Therefore, do not anticipate anything beyond average documentation quality from this kit. Anticipate needing to rely on online forums and video tutorials more frequently than simply reading the included booklets for assembly instructions.
Consider the average rating of three-and-one-half stars as an indication to thoroughly research all negative comments before making a final decision regarding purchasing this product. Do not let it deter you from doing so altogether.
Who Is This Kit For?
Ultimately, this kit is intended for serious power-builders. If you've found your present e-bike to be lacking sufficient oomph and would like to add substantially more power, then GOSHET's direct-drive 2000w hub motor would certainly satisfy that desire. Commuters seeking a reliable, quick method to travel daily will also appreciate the capabilities offered by this kit.
This kit would not be ideal for casual riders however. Casual riders would prefer to sacrifice some power for simplicity and portability whereas serious e-bike enthusiasts require power and ability to support their desired style of riding.
An honest admission is required. The biggest concern regarding this kit would be its 72-volt system requirements. Such systems represent a minority compared to the more prevalent 48-volt and 52-volt systems used in most conversions today. Batteries, chargers, and spare parts for such systems are much rarer than their more popular counterparts. Riders planning to run high-power for extended durations understand this trade-off.
If you presently own a 72-volt battery or intend on creating one for your build, then this kit will become a very viable option for you. If you are still deciding between a 72V build and a more common 48V or 52V platform, our conversion kit roundup is a good place to compare your options side by side.
In terms of affordability, this kit presents itself as an economical way into serious power options. You are not paying any additional costs for branding as you are getting an entire package for what you pay.
For further information on various builds, guides, and perspectives on converting your bike into an ebike, check out our blog.
Frequently Asked Questions
What battery do I need for this kit?
You need a 72V battery. The controller and motor are built around a 72V system. A 48V or 52V pack will not run it properly, so plan your battery purchase around that requirement.
Does the kit come with everything I need?
It includes the motor wheel, controller, LCD display, pedal assistant sensor, handles, controller bag, and an installation manual. You still need to supply a battery, charger, and any frame-specific hardware like torque arms.
Will this fit my existing bike?
It is built for a 27.5 inch rear wheel with standard dropouts. Check your frame clearance and dropout width before buying. A torque arm is strongly recommended at 2000W for safety.
Is the 7-speed flywheel included?
Yes. The motor comes with a 7-speed flywheel, so it works with your existing derailleur and gear setup. You do not need to convert to single-speed.
How fast will it go?
With a 2000W motor at 560rpm on a 72V system, top speed depends heavily on your battery, controller settings, and gearing. Expect serious speed potential, but treat the exact number as build-dependent rather than a fixed spec.
Is 3.7 stars a reason to avoid it?
Not necessarily, but be careful. The review count is small and the average is dragged down by a few unhappy buyers, mostly around the 72V battery requirement. Read the negative reviews and make sure you are ready for a 72V build before you commit. See the current listing and reviews here.