The Helrgelrn 1500W 26-inch front hub motor conversion kit (a front wheel setup designed for fat-tire bikes), provides 1500 watts of front-hub power, a sine wave controller located under the hood and a full color LCD display. All of this is provided for less than 200.00 dollars and is quite a bit more than you'd reasonably expect at this price point. This front-wheel kit was built specifically for 26-inch fat-tire bikes. Those individuals who've put this kit onto their bikes seem to be pleased. I'll list the specifications, details of the installation process, as well as comments from actual owners before you part with your money.
Specifications and Construction
The headliner here is the motor. This is a 1500-watt brushless, gearless hub-motor that operates at 520 rpm. According to the manufacturer, this equates to a maximum operating speed of 31 to 37 miles per hour depending upon rider's body mass, terrain conditions, etc. That is truly fast for a conversion kit priced in this range and places riders in true traffic speed.
You receive 5 adjustable speed settings, plus a fixed speed cruise setting. This allows you to set a comfortable speed and let go of the throttle. The controller utilizes a sine-wave configuration. Why does that matter? A cheap trapezoidal configuration causes motors to whine and chatter at lower speed ranges. In contrast, sine-wave controllers provide quieter operation, smoother operation and lower starting noise. FOC (field oriented control) configurations also help reduce the amount of noise generated during startup.
The motor also supports both Hall effect and non-Hall effect modes. So why is that important? There are several reasons. first, many kits utilize Hall effect configurations exclusively. When One of the Hall-effect sensors within the motor fail, the entire kit often stops dead-in-it's-tracks. However, this configuration will detect such failures and switch to non-Hall effect mode and continue to operate. Yes, you may sacrifice some efficiency. However, you continue to ride rather than walk your bike home. That is a true durability feature you don't always see at this price point!
The kit operates off a dc48-volt system and utilizes a smart PAS (pedal assist system) sensor that matches motor output to your pedal cadence as opposed to jerking when you begin pedaling. The entire setup is powered by a VA color LCD display that displays gear selection, speed, mileage, battery level, etc.
Installation Process & Compatibility
This is a front-wheel kit designed specifically for fat-tire bikes with 26 x 4 inch tires. If you own a fat-tire mountain bike or cruiser and have been thinking about adding an electric-assist motor to it, this is a direct application.
Installation of the kit is relatively straight-forward. Simply swap-out the existing front wheel and secure the axle. Wiring is where things become slightly more complex. Connect the motor wire to the controller, place the controller in the included controller bag and connect the display and handbrake. One item i did want to mention regarding the handbrake is that it acts as a safety feature to shut-off the motor immediately when activated via the lever. That is precisely the type of functionality you want on a 1500-watt front-hub motor.
One piece of information each owner of this kit mentioned that i wanted to pass along is the importance of purchasing the v7 torque arm. As you are likely aware, a 1500-watt front-hub motor produces tremendous twisting forces on the fork drop-outs. Without proper torque arm support you risk causing the axle to spin and damage the drop-outs. Each reviewer of this kit mentioned this in their review. Therefore, i felt obligated to pass this along to potential buyers. While there isn't any reason you cannot purchase two torque arms, they won't bolt directly onto each other due to slight variations in construction. However, modifications are minimal and easy to accomplish.
Another piece of information from the owners that i thought worth mentioning were concerns regarding the position of the quick-disconnect connector relative to the motor. Some owners noted that it would have been beneficial if it were positioned closer to the motor allowing for quicker disconnection if One were to encounter a flat while on-the-road. While this is not a major concern. It is something worthy noting prior-to-completion of assembly.
Owner Comments on Amazon
As of today, this kit has received an average rating of 5-stars across four separate reviews. While a small sampling of reviews. All appear to be genuine users. None of the owners expressed dissatisfaction with regard to the major aspects of the product. Below are summaries of what each owner had to say:
Jeremy C kept his comment brief. He stated that he believes it is a fantastic purchase for anyone familiar with e-bikes. Additionally, jeremy said that installation was a breeze, simply requiring reading and following the instructions, thus providing a 'plug-and-ride' experience. Jeremy's statement mirrors the typical user experience with these kits. I.e., simply read the manual, properly tighten everything and...it works.
Cowboyvic addressed multiple issues relevant to installing the kit. Cowboy confirmed that the motor is extremely quiet. Additionally, he emphasized the importance of utilizing a v7 torque arm. Furthermore, cowboy indicated that using two torque arms would require moderate modification(s). Lastly, cowboy expressed frustration that he preferred the quick disconnect connector sit closer to the motor for ease-of-use when experiencing a flat on-the-road.
Shelley Divall has utilized her kit for approximately three months now. Shelley reported that she found this kit to offer significantly more than expected given its affordable price. Specifically, shelley indicated that all major features common among high-end kits are present including 5-speeds, cruise-control, sine-wave controller, full color LCD display and safety brakes -- all at a greatly reduced price compared to comparable products. Shelley further reported that she operated her bike through rain/sun and rough roads without incident and converted an older heavy bike into a speedy and reliable e-bike.
Whom Is This Kit For?
This kit appears to be targeted towards do-it-yourself enthusiasts who currently possess basic knowledge pertaining to e-bikes and are comfortable with reading directions/instruction manuals.
Additionally, it is compatible with 26-inch fat-tire bikes. Therefore if you possess a fat-tire mountain bike/cruiser with 26 x 4 inch tires. This is a clear-cut application.
Finally, it is designed as a front-wheel application resulting in easier installation and better weight-distribution compared to rear-wheel applications. Transforming an older heavy mountain bike into a faster/easier-to-manage e-bike.
Frequently Asked Questions
Does This Kit Fit My Bike?
Yes! If your bike possesses 26-inch wheels with 4-inch fat-tires. This is an exact match! If your bike has larger/larger tires. Ensure to measure prior to purchasing as this kit mounts via lace-together method designed for that specific tire size.
Must I Utilize a Torque Arm with This Kit?
Yes! Several owners have called attention to this requirement in their individual reviews. A 1500-watt front-hub motor creates substantial rotational stress on your forks' drop-outs. Installing a v7 torque arm addresses this issue. Although additional torque arms can be installed as well. Slight adjustments/modifications will be required for proper installation.
How Fast Will It Go?
The motor spins at 520 rpm creating an estimated riding speed of 31 to 37 mph depending on your body mass, tire inflation pressures, terrain conditions etc.. Real-world results vary. However, this kit is fast and not merely for assistance!
Can I Still Ride the Bike If a Hall Sensor Malfunctions?
Yes! The motor will operate in both Hall effect and non-Hall effect modes! Therefore, if One of your Hall sensors within your motor fail. Your controller will recognize the failure and automatically switch to non-Hall mode. Continuing uninterrupted operation! Of course you'll loose some efficiency. However you'll continue to ride instead of walking your bike home! That is true durability you don't always see at this price point!
What Comes in the Box?
In addition to the wheel hub-motor. Sine wave controller located under-hood. Controller bag. And VA color LCD display. There are no other items included.
Is the Color Lcd Worth It?
While opinions will vary. I believe yes! The VA color LCD displays gear selection, speed, mileage, and battery levels -- giving you continuous visual awareness of your bikes condition and performance -- whereas typically you're limited to flashing led lights.
Final Thoughts
For under 200.00 dollars (amazon price). The Helrgelrn 1500W 26-inch front hub conversion kit represents an incredible number of components for its price. Not only do you receive 1500 watts of power. But also quiet smooth operation via sine-wave controller. Five-speeds w/cruise control. Full color LCD display. Safety brake w/auto-shut off. And much more. Owners who've actually used the kit agree completely with regards to power output. Quietness of motor. Durability through rain/snow/rough roads etc..
Of-course there is One caveat similar to all front-hub kits this powerful. You must have a torque arm installed properly prior-to-assembly. You must also be willing to perform installation procedures according to manufacturer's guidelines. If you meet both requirements and you possess a fat tire bike with a wheel size of 26-inches, then you should consider this kit as a great value for turning your old heavy mtn bike into a fast reliable ebike.
If you're still undecided. Please browse our ebike conversion kit guides for comparison of motor types & power outputs prior-to-purchase decisions. Also take a look at our conversion kit reviews for more hands-on breakdowns comparing other budget kits we've reviewed. Once you feel confident in your selection. Order the kit here and get started building!
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