Ringmaster S-HJ8 1000W Electric Bike Conversion Kit - Is It Easy to Install?
A powerful and cheap way to electrify your bike at $140, but you'll need to buy a battery separately and be comfortable doing the installation yourself.
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Best For
How this e-bike scores for different riding styles
The 1000W motor delivering 33 mph (53 km/h) top speed with 440 rpm rotational speed and >80% efficiency offers strong performance credentials. The 48V system and brushless design provide reliable high-output power delivery.
The 36-spoke wheel design with 264 lbs weight capacity and 1000W motor provide solid hauling power. However, no rear rack is included, and the kit format requires users to source their own cargo accessories.
The 1000W brushless motor with 45N.M torque and 264 lbs weight capacity offers decent power for trails, but lacks suspension and fat tires needed for serious off-road riding. The kit format allows installation on mountain bikes.
The 33 mph speed and smooth brushless motor operation make it suitable for casual rides, but the lack of included battery and basic features limit its out-of-box recreational appeal. Requires significant DIY setup.
This is a conversion kit, not a complete e-bike, lacking battery and display which are essential for commuting. However, the 1000W motor and 33 mph max speed provide adequate power for urban travel once installed on a suitable bike.
As a rear wheel conversion kit weighing 22.9 lbs, this product is not designed for portability. It has no folding capability and is meant to be permanently installed on a bicycle frame.
Our Verdict
The Ringmaster conversion kit is a budget way to add electric power to your regular bike. For only $140, you get a strong 1000W motor that can push you up to 33 miles per hour. The motor runs quietly because it's brushless, and it's built to last with parts made from aluminum, iron, and copper. The wheel has 36 spokes arranged in a special pattern that makes it strong enough to carry 264 pounds. It also comes with built-in lights and special brake handles that turn off the motor when you squeeze the brakes. The 3-year warranty is longer than many cheap e-bike parts offer.
This kit works best for people who already have a 26-inch bike they want to upgrade and aren't scared of using some tools. It's perfect for riders who want to save money by building their own e-bike instead of buying one ready-made. The powerful motor makes it good for getting up hills or carrying heavy loads. If you need to go fast on your daily rides or want a workout bike that can also help when you get tired, this could work well. However, you need to be ready to spend extra money on a 48V battery and know how to install everything yourself.
This kit has some big drawbacks you should know about. The biggest problem is that no battery comes with it, so you'll need to buy one separately for $200 to $400 more. There's no screen to tell you how fast you're going or how much battery is left. You can only use this on bikes with 26-inch wheels, which means it won't fit many modern bikes. If you're not handy with tools or don't want to deal with wiring and installation, you should probably just buy a complete e-bike instead. People who want something ready to ride right out of the box or need a warranty that covers the whole bike should look at other options.
What We Like
- Super affordable at just $140, making it one of the cheapest ways to turn a regular bike into an electric one
- Powerful 1000W motor can reach speeds up to 33 mph, which is faster than most budget e-bikes
- Strong weight limit of 264 pounds means it can handle most riders plus some cargo
- Comes with a 3-year warranty which is really good protection for such a low price
- Has power-off brake handles that cut the motor when you brake for safer stops
What Could Be Better
- You have to buy the battery separately, which means spending at least another $200-400 on top of the kit price
- No screen or display to show your speed or battery level while riding
- Installation requires tools and bike knowledge - not a ready-to-ride solution for beginners
- Only works with 26-inch wheel bikes, so you need to make sure your bike is the right size first
- Missing UL safety certification which some buyers look for in electric bike parts
Standout Features
Full Specifications
Build & Frame
| Wheel Size | 26 inches |
Weight & Capacity
| Max Rider Weight | 120kg |
Features
Included Features
Not Included
Frequently Asked Questions
Common questions about Ringmaster Electric Bike Conversion Kit 48V 1000W Rear Wheel Electric Bicycle Motor Kit E-Bike Hub Motor Conversion Kit for 26 Inch Bike
Does this kit come with a battery?
No, the battery is not included. You need to buy a separate 48V battery to power this motor kit.
How fast can this motor make my bike go?
The motor can reach a top speed of 53 km/h, which is about 33 miles per hour.
What size bike wheels does this fit?
This kit only works with bikes that have 26-inch wheels. Make sure to measure your bike before buying.
How much weight can this handle?
The kit can support up to 120 kg or about 264 pounds, including the rider and any cargo.
Is this hard to install on my bike?
The product is a conversion kit that requires tools and some mechanical knowledge to install. It's not pre-assembled or ready to use right away.
Best For
How this e-bike scores for different riding styles
The 1000W motor delivering 33 mph (53 km/h) top speed with 440 rpm rotational speed and >80% efficiency offers strong performance credentials. The 48V system and brushless design provide reliable high-output power delivery.
The 36-spoke wheel design with 264 lbs weight capacity and 1000W motor provide solid hauling power. However, no rear rack is included, and the kit format requires users to source their own cargo accessories.
The 1000W brushless motor with 45N.M torque and 264 lbs weight capacity offers decent power for trails, but lacks suspension and fat tires needed for serious off-road riding. The kit format allows installation on mountain bikes.
The 33 mph speed and smooth brushless motor operation make it suitable for casual rides, but the lack of included battery and basic features limit its out-of-box recreational appeal. Requires significant DIY setup.
This is a conversion kit, not a complete e-bike, lacking battery and display which are essential for commuting. However, the 1000W motor and 33 mph max speed provide adequate power for urban travel once installed on a suitable bike.
As a rear wheel conversion kit weighing 22.9 lbs, this product is not designed for portability. It has no folding capability and is meant to be permanently installed on a bicycle frame.
Scores
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