Name: 48V 1000W Ebike Conversion Kit Waterproof Design
Brand: Kirbebike
Price: 943.95 EUR
Availability: InStock
Rating: 4.31 (26 reviews)

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power output

1000W | motor wheel

Battery Specs

20Ah/25Ah | Lithium Battery

top speed

45MPH+ | Max Speed

ride range

35-70km | Range

motor weight

5.1kg | Motor Weight

Install Time

30 Minutes | Convert Your Bike

durability

800+ Times | Cycle Life (Long-Lasting)

charging

5h | Fast Recharge

torque

40Nm | Max Torque

Smooth start, Legal riding, Easy to install, And Long service life.

High Quality MTX wheel, designed for disc brakes only, features a 30mm width, double-wall aluminum alloy construction, sleek black color, fits bikes with 7–12 speed sprocket systems with no complex modifications required. Achieve a 25km/h speed limit with the display button—no key fob required.

1000W

Motor Power

40Nm

Max Torque

Flexible Installation Design

Compact Design. Flexible Fit. Secure Installation.

Designed with a more compact shape, this battery takes up less space and fits more bike frames with ease. It supports Top Tube / Down Tube mounting, giving you more flexibility when planning your setup. Paired with the bracket and mounting plate system, installation is simpler, more secure, and better equipped for anti-theft protection, everyday safety, and ride stability.

Flexible

Tube Mounting

Secure

Bracket Lock

Enhanced Power Core

Stable Power Starts with a Stronger Core

Built with a 60A BMS and premium LG / Samsung cells, this battery delivers stable output you can rely on for both daily riding and higher-demand use. The upgraded internal structure and patented design work together to improve consistency, durability, and overall confidence on every ride.

60A

BMS

LG / Samsung

Cells

Patented

Design

Built for Smooth, Confident Rides

High-Voltage Power. Smarter Range. Built to Last

Built with premium lithium cells, the Taishan 52V 25Ah battery delivers strong acceleration, stable voltage output, and a dependable 40–70km riding range for demanding riders. Whether you’re upgrading your e-bike or building a custom setup, this battery provides the power you can trust — ride after ride.

40-70km

Range

800+

Cycles

25Ah

Battery Capacity

IP65

Waterproof

More Power, More Miles

Smaller Size, Longer Range, And Shorter Charging Time

The KirbEbike e-bike kit is combined with a new 48V20Ah lithium battery that is smaller but more versatile. The battery effectively increases the range, stability, and safety of the bike. The range is 30-50km on a single charge and the battery will retain 80% of its capacity after 1000 charges. The life span of the lithium battery pack is 3 years.

35-70km

Mile Range

20Ah

Battery Capacity

Provides information on speed, mileage, power, temperature, etc.

LCD81F Color Display Meter

Experience smarter rides with the LCD81F Color Display Meter. Track your speed, mileage, power, and battery status at a glance, all on a vivid TFT screen. With cruise control, walk assist, and real-time signals, every ride is smoother, safer, and more enjoyable.

IP66

Waterproof Rating

Find Your Perfect Model

Best For

Commuting Kits

Off-Road

Commuting Kits

Motor Power

1000W

2000W

500-750W

Full Charged Voltage

54.6V

58.8V

42V / 54.6V

Wheel Position

Rear Wheel

Wheel Size

26” / 27.5” /28” / 29” / 700C

20” / 24” / 26” / 27.5” /28” / 29” / 700C

Bike Compatibility

MTB / Fat Bike / Road Bike / City Bike

Top Speed

45MPH+

55+MPH

45-50km/h / 35-45km/h

Range

35-70km

40-85km

35-70km / 30-40km

Battery Required

52V 25Ah / 48V 30Ah / 48V 20Ah

52V 25Ah / 52V 30Ah / 48V 30Ah / 52V 20Ah

48V 750W / 36V 500W

Battery Included

Optional

Installation Level

Medium

Brake Compatibility

Disc Brake

Waterproof Cables

Yes

App Support

Yes

Best For

Commuting Kits

Off-Road

Commuting Kits

Motor Power

1000W

2000W

500-750W

Full Charged Voltage

54.6V

58.8V

42V / 54.6V

Wheel Position

Rear Wheel

Wheel Size

26” / 27.5” /28” / 29” / 700C

20” / 24” / 26” / 27.5” /28” / 29” / 700C

Bike Compatibility

MTB / Fat Bike / Road Bike / City Bike

Top Speed

45MPH+

55+MPH

45-50km/h / 35-45km/h

Range

35-70km

40-85km

35-70km / 30-40km

Battery Required

52V 25Ah / 48V 30Ah / 48V 20Ah

52V 25Ah / 52V 30Ah / 48V 30Ah / 52V 20Ah

48V 750W / 36V 500W

Battery Included

Optional

Installation Level

Medium

Brake Compatibility

Disc Brake

Waterproof Cables

Yes

App Support

Yes

HOW TO BUILD A DIY EBIKE??? KirbEbike

In this video, I'll run through how to build an e-bike using KirbEbike's conversion kit, and do a couple speed tests on the completed e-bike· What's in the box?· Motor wheel setup· Fitting the tyre· Fitting the torque arm· Installing the battery holder, controller bag and display· Connect the wiring· Throttle and throttle testing· Changing the speed limit and unit of measurement· Speed test· Final thoughts

What's in the kit?

What's included in the individual kit?

In the individual kit, you’ll find everything needed to convert your bike into an e-bike.

It includes a 48V 1000W high-quality MTX wheel, a 48V 25A smart controller, LCD81F TFT color display, V12 PAS, thumb throttle, e-brake levers, 1T4 waterproof quick-release harness wires, and a well-packaged foam box to ensure all parts are safe.

Additionally, we provide free service accessories, installation tools, and extra parts.

What's in the kit?

What's included in the individual kit?

In the individual kit, you’ll find everything needed to convert your bike into an e-bike.

It includes a 48V 1000W high-quality MTX wheel, a 48V 25A smart controller, LCD81F TFT color display, V12 PAS, thumb throttle, e-brake levers, 1T4 waterproof quick-release harness wires, and a well-packaged foam box to ensure all parts are safe.

Additionally, we provide free service accessories, installation tools, and extra parts.

Motor Wheel

1. High Quality MTX wheel, designed for disc brakes only, features a 30mm width, double-wall aluminum alloy construction, sleek black color, fits 1.95-3.0 tires.

2. 48V 1000W SHENGYI brand Brushless Direct Drive Rear Motor, 4 kg 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 Cassette 8s/9s/10s /11s sprocket.

5. 45-70km/h max speed.

6. CE, ROHS certificates.

7. The lightweight, rotary motor weighs 5.1KG, the card motor weighs 5.3KG.

Smart controller

1. 48V25Amp 9mosfets.

2. Smart Controller.

3. Quick Release Connectors.

4. Waterproof Design.

5. CE, ROHS certificates.

LCD81F color display

1. TFT Color Display Design.

2. Temperature Indicator, Battery Power Indicator, Motor Peak Power Indicator.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

V12 PAS. A 12 magnets signal pedal assist system.

e-Brake levers

Electric Brake Lever to cut off the power when you press it.

1T4 harness wires

The waterproof and quick-release connectors.

Thumb Throttle

Easy installation、More sensitive 、more stable performance.

Free Accessories Included

Allen Tool Set

Crankset Remove Tool

Freewheel Remove Tool

Crankset Remove Tool

Wrench

Sweet Service Accessories

Brake sensor

Torque arm

ECMF

D12L PAS

Additional Parts

Book Manal

Cable Ties

Cable's Tube

Frequently Asked Questions

Will the kit fit my bike?

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.

Any question?

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.

How many blocks can I walk? (top speed)

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.

How long is our warranty?

We stand by the quality of our products.

• 1-Year Global Warranty on all Kirbebike conversi on kits.

• UK: Free repairs for both the e-bike system and battery. US & Netherlands: Free battery repairs for 1 year.

• Need help? Contact support@kirbebike.com for warranty support and technical assistance.

Free shipping to my country?

We ship to customers worldwide.

• Free shipping on all UK orders.

• We also ship to the US, EU, Canada, Australia, Japan, and many other countries.

• International shipping rates are calculated automatically at checkout.

How long is the shipping and delivery time?

We deliver orders quickly with trusted global carriers.

• UK: Free delivery in 3–5 business days.

• International: Most orders arrive within 5–14 business days.

• For safety, your kit and battery may be shipped separately with full tracking.

Influencing comments

Simple, affordable, high performance, and low maintenance single speed.

Top E-Bike Review Site

Impressive value for money.

Leading Tech Magazine

A blend of value and style that doesn't scrimp on features.

The Home of Technology News

48v 1000w e-bike conversion kit waterproof design

Installation booklet could be written a little better. Some parts were too small for the handle bars and frame. I know it’s hard to make parts fit hundreds of bikes, but you can make parts a little larger and put spacers in. I have rode it for 20 miles, could have used more power and speed. If you want close to 40 mph go at least 2000w. I’m close to 200 pounds, when I ordered I should have took that into consideration can only get 28 mph my fault.

I really like the 1,000-watt battery.

I think it would be great if there was a device for even one light with such a good system.

1000w

very good kit , a little slower than expected

1000w E-bike kit

Bike is good and reilable goes 43k battery doesn’t last long if u just want it going around with friends not peddling besides that everything fine I’ve just over 250km done on it and is good and reilable would recommend it

Delivery was super fast ordered on 2nd February, kit arrived on 10th and the battery on the 12th.

1000w 48 rear wheel 28" kit

Bought just the kit as I had a battery already. Build quality is great. Well thought out kit compared to the kits on ebay, which also do the same job. But for longevity I would recommend this Kirbykit. Only down side I guess it's isn't uk based so if anything does go wrong I would probably waiting a week and a bit for any bits to come

Still waiting

I meant e-bike conversion kit ….. can’t seem to edit my review

Still waiting

Received my eBay conversion kit on the 24th of November, but as of the 11th of December still waiting for the battery. Poor show if I’m honest

Good quality easy to build ,
good instructions
Friendly and helpful staff on website and online,
Good customer support team

1000w conversion kit

The wheel and components are great I haven't had the chance to try it yet as my battery has not arrived but I can't wait!

Off-Road Kits

Commuting Kits

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500W–1000W

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48V 1000W Ebike Conversion Kit Waterproof Design