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Free shipping
Easy installation
1-year warranty
VAT included
Free shipping to the UK, US, and EU countries.
Orders shipped from China are sent via DHL Express, FedEx, TNT, or airmail. Please note: When ordering an e-bike kit, the battery is shipped separately.
DHL, FedEx, TNT, etc. - Orders typically take 5-14 business days to reach most locations and may take longer in remote areas.
The KirbEbike is equipped with a high torque 36V 500W and 48v 750w eBike Brushless Geared motor design, all black color nice and strong wheels for disc brakes, 135mm open size to suit most models and can fuel up to 35-45km/h riding speeds.
The KirbEbike is equipped with a 36V13AH-48V16AH Panasonic Cell lithium battery capable of an impressive riding range of 40-60km+. This e-bike kit also comes with advanced features including a thumb throttle, Electric Brake Lever, LCD81F color display design, 1T4 waterproof main cable harness, V12 PAS, and more. Bringing the ultimate in e-bike riding performance, comfort, and style.
Please consult a professional to make sure your conversion is fitted safely and check your local laws on e-bikes for where you live in the world, do not ride bikes on the road unless you have checked the law in your local area and country. Batteries ship separately.
PLEASE NOTE THIS KIT IS FOR OFF-ROAD USE ONLY
In the individual kit, you get everything you need to DIY your bike into an e-bike.
A 36V 500W or 48v 750w big torque motor wheel, 36V or 48V 25Amp smart controller, LCD81F color display, V12 PAS, Thumb throttle, e-Brake levers, 1T4 waterproof quick release harness wires and a good package with foam to protect all parts be safe.
In addition, we provide free sweet service accessories, installation tools, and additional parts.
In the individual kit, you get everything you need to DIY your bike into an e-bike.
A 36V 500W or 48v 750w big torque motor wheel, 36V or 48V 25Amp smart controller, LCD81F color display, V12 PAS, Thumb throttle, e-Brake levers, 1T4 waterproof quick release harness wires and a good package with foam to protect all parts be safe.
In addition, we provide free sweet service accessories, installation tools, and additional parts.
1. MTX 39 Double Wall Aluminum Alloy Strong Rim. Black color for disc brake only.
2. 500W-750W SHENGYI brand Brushless Geared Rear Motor, 4kgs Weight.
3. Black Paint Spokes anti-rust 12G 2.6mm with copper Nipples.
4. Dropouts: 135-142mm. Two Motors: One is for a 7s threaded sprocket, and The other is for a Cassete 8s/9s/10s/11s sprocket.
5. Fit Disc Brake only.
6. 35-50km/h max speed.
7. CE, ROHS certificates.
8. Lightweight, rotary motor weight 5.1KG, card motor weight 5.3KG.
1. 36V/48V 25Amp 9mosfets
2. Smart Controller.
3. Quick Release Connectors.
4. Waterproof Design.
5. CE, ROHS certificates.
1. Color Display Design.
2. Battery Power Indicator.
3. Running Speed, Average Speed, Max Speed.
4. Single Mileage, Total Mileage.
5. PAS Levers, Brake Signal, Throttle Signal.
6. Cruise Function, 6KM/H Walk Function, and so on.
V12 PAS. A 12 magnets signal pedal assist system.
Electric Brake Lever to cut off the power when you press it.
The waterproof and quick-release connectors.
Easy installation、More sensitive 、more stable performance.
Our kit is suitable for most bicycles, but please view the below details for reference.
Firstly, a 36v 250w front motor system is installed on the front fork instead of the bicycle's front wheel. And its dropouts are 100mm. So please confirm your front fork dropouts is 100mm. Please click Dropouts and view the video of the Dropouts measurement.
Secondly, please choose the wheel size, we have 20" 26" 27.5" 28" 29" 700C wheels. If you are not sure which wheel size fits your bicycle, please click the wheel size to check how to confirm your bicycle wheel size.
At the last, please choose the battery you like. Here is a short video about the installation of the downtube battery and rear rack battery.
Please contact us at support@kirbebike.com if you have more questions.
How Far Can I Go (Battery Range)?
36V 13Ah battery has 30-40 miles of range
36V 16Ah battery has 38-45 miles of range
36V 18Ah battery has 42-50 miles of range
48V 13Ah battery has 40-50 miles of range
48V 16Ah battery has 50-60 miles of range
48V 19.2Ah battery has 60-70 miles of range
48V 21Ah battery has 65-75 miles of range
All figures are in pure electric mode, the actual mileage will be farther if there is pedal assist.
LG cells are better in product quality and stability, so the price is more expensive.
Most of our electric bike conversion kits can reach a top speed of 25-30 Km/h, but the 1000W model can reach speeds of 45-50 Km/h. These speed limits are primarily set by the laws governing bicycles. Requirements for bicycles with a top speed of more than 25 km/h may require additional permits and are subject to different traffic regulations.
We stand by the quality of our products.
· 7-day money-back guarantee on all orders. Please contact us to return items for a refund.
·Lifetime technical support. Contact support@kirbebike.com for assistance from our team of experts.
· 1-year extensive warranty on all retrofit kits. See the Warranty and Returns Policy for details.
Free Shipping to Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, Australia and the United States.
We place great emphasis on quality control from the start of production to the end, and each kit is rigorously tested before it leaves our store.
For complete kit purchases and any purchases that include batteries, our team will build, test and ship your kit within 2-7 business days.
For smaller items, such as accessories or components, our team takes 1-5 business days to process and ship your item.
For more details, check each kit's product page for the latest updates on availability, or email us at support@kirbebike.com.
I'm used to 1000watt brushless hub motors. Thought I would give kirbyebike 500 750 kit a go. I already had a couple of 48V 17.5 Ah batteries.
The plug and play waterproof connectors were a breeze.
In conclusion I would this 750 watt brushless geared motor I s very similar to my 1000 watt brushless hub motor.
I did have a small issue, ( my fault) needed some info, I got a reply straight away. I would definitely buy another kirbyebike kit, if I do another project.
The 500w/750w kit is a dream to instal so simple wheel fits perfectly on my GT Aggressor. I paired it with the 48volt 16ah battery and am well pleased with the outcome lots of speed got over 30mph out of the kit and battery more than enough for anyone i think :) not just speed tho this kit climbs up hills like a demon. The one thing that would be good is some sort of programming cable so i could tweak the power modes myself like the bafang mid drive kits that would be a game changer.
Kirbebike's 500W and 750W MTX Rim Ebike Conversion Kits
Great kit thanks
Fast delivery! Very helpful service of my questions! Super!
was missing the controller bag, Jason quickly responded and asked to give a quick pict completed to prove i didn't receive it and I'm more than sure they would of sent one out but i got it else where due to needing asap, the kit it self has worked flawlessly in this wet british summer where having , absolutely love it thank you!
I completed the installation somewhat clumsily with the patient help of customer support. My problem stemmed from a misunderstanding of the width of my bottom bracket. Anyway, once I got everything working, the mid-motor system performed very well.
Need to protect a second son! I love they are all keyed the same. Makes it easier!
Shipping was fast, and hassle-free. Customer service contacted me to ensure I was choosing a battery that fit my bike (2020 Specialized Roll Elite - Large) to avoid the headache of a return. Awesome!!
The install was easier than I expected when I had the correct tools. I tried to cut corners, and should have opted for better tools the first time (bottom bracket socket). Watch install vids to see the tools you should use. The tools that are included aren’t going to work for a complete install for everyone.
The bike is so fun, I love it!
I have had this motor installed for about 1 month and have had no issues. Easy install. Package came within the time stated. I did get the brake handles sent separately but I didn't need them right away. Motor and battery work great so far after almost 200 miles. Have fun it's way better than buying an ebike with less power. Just make sure your bike is ready and can handle the power. I had to tweak a few things to adjust.
