A 1000W hub motor conversion kit with a full wheel, controller, display, and throttle for well under 100 bucks. That is not a typo. The DUSNDULR 1000W conversion kit on Amazon comes in at a price point that is hard to believe for what you get. So what's the catch.
What You Get in the Box
The DUSNDULR kit ships as a complete rear wheel conversion package. Everything you need to turn a pedal bike into an electric one comes in the box except the battery.
Included parts:
- A 20-inch rear wheel with a 48V 1000W brushless hub motor laced into a cast mag wheel
- A 7-speed freewheel pre-installed on the hub
- A motor controller that manages power flow from the battery to the motor
- An LCD display panel with speed, battery level, trip distance, odometer, and pedal assist level readouts
- A twist throttle for variable speed control
- Brake levers with integrated motor cutoff switches
- All wiring harnesses and connectors needed for installation
What you still need:
A 48V ebike battery. That is the one big item not included. Budget for a separate 48V battery, which runs around 150 to 250 dollars depending on capacity and chemistry. That brings the total project cost to roughly 250 to 350 dollars. For a complete ebike conversion that is still very competitive.
The mag wheel is a standout feature at this price. Most budget conversion kits ship with standard spoked wheels that need periodic truing. Cast mag wheels are heavier but essentially maintenance free. They will not go out of true no matter how many potholes you hit. That alone is a good reason to check the current price on Amazon if you are tired of truing spokes.
The kit earned a perfect five star rating from its one Amazon reviewer so far. Limited feedback to go on, but the single review is positive. Hard to draw strong conclusions from one data point, but it is better than zero.
Specs and Build Quality
The hub motor is a brushless direct drive unit rated at 1000 watts continuous. That puts it in solid commuter territory. Brushless direct drive motors are mechanically simpler than geared hubs. No internal planetary gears to wear out or strip. Fewer moving parts means longer service life overall.
The tradeoff is weight and low end torque. Direct drive motors are heavier than geared hubs of the same power rating. They also have noticeable cogging drag when coasting. That magnetic resistance is normal for this motor type and it does create some pedal resistance when the system is off. Low end acceleration is gentler compared to a geared hub motor too. The motor pulls smoothly once it is spinning but it will not snap your neck off the line.
On a 20-inch wheel the effective torque at the rim is higher than it would be on a 26-inch or 700c wheel. Mechanical advantage from the smaller diameter means the motor feels punchier than its watt rating suggests. Expect cruising speeds around 22 to 26 miles per hour on flat ground with a moderate weight rider and a fully charged battery.
The hub motor casing uses gaskets and perimeter screws for sealing. The kit carries an IP54 waterproof rating, which means it handles rain spray from any direction. That is good enough for wet road commuting but do not pressure wash it and do not submerge it in puddles.
The axle has machined flat spots for torque arm mounting. Good. You absolutely need torque arms when installing a 1000W hub motor. The axle can spin inside standard dropouts under hard throttle and that will tear up your frame. The kit does not appear to include torque arms, so factor that into your build cost.
The wiring harness uses color coded connectors for phase wires, hall sensors, throttle, and brake cutoffs. The cable exiting the axle is long enough to route along the chainstay to a controller mounted on the downtube or tucked inside a frame bag.
The IP54 rating is worth emphasizing at this budget level. Not every conversion kit under 100 bucks bothers with proper sealing. See the kit details on Amazon if weather resistance matters for your build.
Installation
Installation is moderate difficulty. If you can change a bike tire and tighten bolts you can handle this kit. The pre-installed 7-speed freewheel saves a step. Most first time builders should budget two to three hours and watch a couple hub motor installation guides on YouTube first.
Key steps:
- Remove the existing rear wheel from the bike
- Install torque arms on the dropout (buy these separately)
- Mount the DUSNDULR wheel and tighten the axle nuts
- Mount the controller to the frame with zip ties or velcro straps
- Route the motor phase wires and hall sensor cable along the frame
- Connect the LCD display, throttle, and brake levers to the controller
- Connect the battery and test the system
The 20-inch wheel means this kit only fits certain frame types. Standard 26-inch mountain bikes and 700c road bikes are out. Folding bikes, mini velos, BMX cruisers, and small wheel cargo bikes are in. If you have a folding bike collecting dust in the garage this kit plus a 48V battery turns it into a functional electric commuter for a very reasonable total investment.
The controller is a separate rectangular unit that needs mounting to the frame. It is about the size of a deck of cards. Most builders mount it under the downtube or inside a frame bag. The wiring is all plug and play with matching connectors so there is no soldering required.
The brake levers with motor cutoff switches are basic plastic units at this price. They work. They kill power when you squeeze the lever. They are not going to win any awards for feel or build quality but they do the job.
Who Is This For
This kit is for the budget focused DIY builder. If you have a small wheel bike and want the cheapest possible path to electric assist, this is it. The mag wheel eliminates spoke maintenance. The direct drive motor will outlast several seasons of commuting. The price creates a very low barrier to entry.
It is also a solid option for custom projects. Trikes, scooters, cargo trailers, and other non-standard builds that use 20-inch wheels are natural fits. The cast wheel is tougher than a spoked wheel in those applications.
Who should skip it:
Riders who need maximum off road torque should look at geared hub motors or mid-drive kits instead. The direct drive motor's gentle low end is fine for pavement but not ideal for steep technical climbs. Riders with full-size 26-inch or 700c bikes cannot use this 20-inch wheel at all. And anyone who prefers the reassurance of hundreds of customer reviews may want to choose a more established brand.
One review is not a lot of data. DUSNDULR is a new name in ebike parts. The limited track record is worth considering. Established brands like Voilamart or Ebikeling cost more but have proven support and thousands of verified reviews.
A solid approach if you are new to ebike builds is to start with our ebike conversion kits guide to compare options by motor type, power, and wheel size before making a decision.
Frequently Asked Questions
Does the DUSNDULR kit include a battery?
No. You need to buy a separate 48V ebike battery. Budget 150 to 250 dollars for a quality battery with proper cells and BMS.
What bikes does a 20-inch wheel fit?
Folding bikes, mini velos, BMX cruisers, and small wheel cargo bikes. It does not fit standard 26-inch, 27.5-inch, or 700c frames. Measure your current wheel diameter before ordering.
What is the top speed on flat ground?
Expect 22 to 26 miles per hour depending on rider weight, tire pressure, and battery voltage under load. The smaller wheel diameter helps with torque but limits top speed compared to a larger wheel.
Is the motor weather resistant?
Yes. The IP54 rating means it handles rain and wet roads. Avoid pressure washers, deep puddles, and submersion.
Do I need torque arms?
Yes. Any 1000W hub motor needs torque arms installed on both sides of the axle. The kit does not appear to include them. Buy a pair of universal hub motor torque arms separately.
How long does installation take?
First time builders should plan on two to three hours. The process is straightforward. The plug and play wiring eliminates soldering. The pre-installed freewheel saves one step. Watch a few hub motor installation videos before starting.
For more build ideas and comparisons between hub motors and mid-drive systems, check out our blog for the latest ebike content.