20 - 29 Wheel Waterproof Electric Bike Conversion Kit 1000W 1500W 2000W (no tire)

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8.555.000 VND
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1, Top speed: 480-650rpm, about 45-60km/h(28-39mile/h) goes with 26inch wheel;
2, Big torque, 30-55N./M Max, good ability to climb hills;
3, LCD and TFT display shows battery power level, time, speed, mileage, gear. Components error checking and report. The motor and controller voltage can be set on the SW900 LCD display.
4, 48V 52V 60V controller protect and prolong the life of the battery; Dual module controller saves you the time and cost to replace hall sensor if the hall sensor of the motor was broken.
5, Twist brake lever, shut off the motor when you brake stainless steel disc brake.
6, Pedal Assistant Sensor (Pedelec Sensor) sensing the torque and power the motor accordingly, true pedal assist management Integrate your manual pedal with motor power;
7, Water-Proof, Color-Coded Connectors for EASY INSTALLATION. And the XT-60 connector with the adaptor cable for battery. if you need other connector, please advise.
8, Normal wheel & MTX Wheel option.
9, We ship to United Arab Emirates, Saudi Arabia, Qatar too
Motor System
Wheel Size
Display
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Frequently Bought Together

About This Product

Voltage: 48V-60V         
Motor Power: 2000 W;
Number of Speed:  7  ; 
Max Speed: 45-60km/h or 28-38mph ;     
Motor Type: BLDC Brushless Gearless Hub Motor ;        
Tire Type:  No Tire
Brake Type:  No Disc Brake included
Color: ;          
Item Condition: New

Components Included
Motor wheel (no tire | Controller | LCD or TFT display | Throttle | Brake Lever | PAS | 7 Speed Gear for Rear Wheel

Description

Shipment & Delivery

Wheel Size & Bike Dropout Measure

20" - 29" Waterproof Electric Bike Conversion Kit 1000W 1500W 2000W

Product Overview

The Waterproof Electric Bike Conversion Kit (1000W / 1500W / 2000W) is an all-weather, high-performance power transformation package designed for mountain, commuter, and fat tire bicycles. Built with an IP65 waterproof quick-connect wiring harness, this high-torque brushless gearless rear hub motor setup operates reliably in heavy rain, mud, and wet off-road environments. Compatible with 48V, 52V, and 60V battery systems, it delivers top speeds ranging from 28 mph to 40+ mph (45 km/h to 65+ km/h) depending on selected wattage and voltage. Complete with standard 135mm rear dropout fitment, a 30A–45A intelligent sine-wave controller, a 5-level Pedal Assist System (PAS), and a full-featured digital LCD display (SW900 or UKC1 Color TFT), this kit gives you complete control over your custom e-bike build.

Technical Specifications

Feature Specification
Motor Type Brushless Gearless Rear Hub Motor (BLDC Direct Drive)
Power Options 1000W | 1500W | 2000W Peak Power Output
Operating Voltage 48V / 52V / 52V Compatible
Top Speed 1000W: ~45 km/h (28 mph) | 1500W: ~55 km/h (34 mph) | 2000W: ~65+ km/h (40+ mph)
Max Torque Up to 55 N.m High-Torque Direct-Drive Output
Waterproof Rating IP65 Water & Dust Resistant (Julet Sealed Quick-Release Plugs)
Dropout Width Spacing Standard 135mm Rear Dropout (Fits 6/7-Speed Threaded Freewheel), Please be noted that rear hub motor axle width is 135mm, if you add 7 speed gear or washers, your bike's rear fork need to have bigger than 135mm spacing.
Wheel Sizes Available 20", 24", 26", 27.5", 28" / 29" / 700C (Double-Wall Aluminum Rim). MTX rim width: 38.9mm
Spokes & Construction Heavy-Duty 12G / 10G Stainless Steel Spokes
Controller Specs 48V–60V Intelligent Sine-Wave Controller (30A for 1000W / 35A for 1500W / 45A for 2000W)
Display Options Backlit SW900 LCD OR Full-Color UKC1 TFT Screen
Recommended Battery 48V–60V Lithium-ion Battery with 30A to 50A Continuous BMS


Key Features & Performance Highlights

  • IP65 All-Weather Waterproof Harness: Equipped with sealed, color-coded Julet quick-release connectors to prevent electrical shorts and corrosion during wet-weather commuting, downpours, and trail riding.

  • Selectable High-Output Power Levels (1000W–2000W): Choose the exact power tier for your riding needs—from reliable 1000W street commuting to high-speed 2000W off-road hill climbing.

  • Silent Direct-Drive Motor Architecture: Operates without internal gears or clutches, drastically reducing mechanical wear for virtually silent running and long-term durability.

  • 48V / 52V / 60V Multi-Voltage Flexibility: Powered by an intelligent sine-wave controller that supports system upgrades, allowing you to increase battery voltage for higher top speed and faster acceleration over time.

  • Digital Display Telemetry Options:

    • SW900 Backlit LCD: Shows speedometer, trip odometer, battery charge indicator, 5-level PAS assistance, and error diagnostic codes.

    • UKC1 Color TFT Display: Upgrades to a vibrant color interface with advanced trip telemetry, night mode, wattage usage monitoring, and speed restriction limits.

What’s Included in the Conversion Kit

  • 1x Waterproof Rear Hub Motor Wheel (1000W, 1500W, or 2000W pre-laced in selected rim size) with 7-Speed Freewheel Mount

  • 1x 48V–60V Intelligent Sine-Wave Motor Controller

  • 1x IP65 Waterproof Main Wiring Harness (Plug-and-Play Julet Connectors)

  • 1x Digital Display Option (SW900 LCD or UKC1 Color TFT)

  • 1x Twist Throttle (or Thumb Throttle option), We normally send twist throttle if you don't specify that you need thumb throttle

  • 2x Electric Safety Brake Cut-Off Sensors / Levers

  • 1x 8-Magnet Pedal Assist Sensor (PAS) for 1000w & 1500w, and 12-Magnet Pedal Assist Sensor for 2000W.

  • 1x Mounting Harness

Frequently Asked Questions (FAQ)

Q: How waterproof is this 1000W/1500W/2000W e-bike conversion kit?

A: The main harness, motor phase cables, throttle, brake cut-offs, and display connections feature IP65 waterproof seals with threaded quick-release plugs. The system is engineered for riding in heavy rain, wet mud, and road spray. (Note: Do not submerge the wheel underwater or clean with high-pressure washers).

Q: Will this waterproof rear wheel kit fit my bicycle frame?

A: The rear hub motor axle is 135mm, So, Yes, provided your bicycle frame features a standard 135mm rear dropout width (rear axle spacing) and uses 20", 24", 26", 27.5", 28", or 29" (700C) wheels. But if you need to add speed gear and washers, the fork spacing request would be more than 135mm. So you need to make sure your bike fork spacing can be enlarged.

For measurement guidance, see the Bicycle Wheel Size and Dropout Measurement Guide.

Q: What battery capacity and BMS rating do I need for this kit?

A: Battery requirements depend on the motor wattage selected:

  • 1000W Kit: Requires a 48V–52V battery with a minimum 30A continuous BMS.

  • 1500W Kit: Requires a 48V–72V battery with a minimum 35A continuous BMS.

  • 2000W Kit: Requires a 48V–72V battery with a minimum 45A–50A continuous BMS.

Q: What is the top speed difference between 1000W, 1500W, and 2000W?

A: On flat terrain with a 52V or 72V battery setup:

  • 1000W: Reaches approximately 28–30 mph (45–50 km/h).

  • 1500W: Reaches approximately 32–35 mph (52–58 km/h).

  • 2000W: Reaches approximately 38–42+ mph (60–68+ km/h).

Q: Where does the kit ship from, and how long does delivery take?

A: The product information lists shipping from China by air, sea, or rail, depending on the selected delivery method.

Estimated delivery times provided for this product are:

  • Air shipping: Approximately 10–15 business days.

  • Sea shipping to the US: Approximately 28–30 business days.

  • Rail shipping to the UK and EU: Approximately 30–35 business days.

These are estimates and may vary depending on destination, customs processing, carrier schedules, and seasonal demand.

For details, see our Shipping & Delivery Policy.

Q: Will I need to pay import taxes?

A:  Import taxes are normally not charged for shipments to the US, UK, EU, and Australia. Additional charges may apply in New Zealand, Switzerland, Norway, Mexico, Argentina, Brazil, and other destinations.

Import duties and taxes depend on the destination, shipment terms, and local customs rules. Please confirm the applicable charges before ordering.

For more information, visit our Customs & Import Tax Guide.

 

 

Component Specifications: This e-bike conversion kit features original SW900 LCD display and UKC1 TFT display, MTX wheel. All featured third-party components are authentic parts sourced for assembly. Brand names belong to their respective owners and are used here solely to describe the installed components.

 

 

Rear Wheel Dropout

Rear wheel Size and dropout

 

Installation Guide of Rear Wheel Ebike Kit

How to increase the fork width when your bike's fork is not enough wide

Shipment & Delivery

We normally ship it from China, US, UK or Germany warehouse by FEDEX, UPS, DPD, DHL, GLS, POST or other international express. 

1, Ship it from US, UK and Germany warehouse

When you can receive your order: Order Handling Time + Delivery Time. If we have stock in US, UK or Germany warehouse, we ship it from US warehouse to US buyers, from UK warehouse to UK buyers, from Germany warehouse to Europe Union buyers. The delivery normally takes about 1-5 business days. The shipping cost to these three areas (US, UK and Europe Union) is free. To the other countries, you can check the shipping cost at checkout. No import tax from Germany to Europe Union countries.

 Shipping from US, UK and Germany Warehouse
 Destination Order Handling Time(Business day) Delivery (Business Days)

Shipping Methods

Shipping Fee

Import
Tax

US, UK, Germany 1-2 1-5 DPD, UPS, DHL, Evri, GLS, Post or FEDEX etc., Free None
Norway, Switzerland and EU, please check EU
countries list below
1-2 3-5


DPD, UPS, DHL, Evri, GLS, Post or FEDEX, etc.,


Free None



EU countries list: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden 


2, Ship it from China

When you can receive your order: Order Handling Time + Delivery Time. For the orders which ship from China, We need some days to prepare your order especially the stealth bomber ebike. The order handling time is about 2-7 business days. Please check the shipping fee, handling time, delivery and import tax details in the following tables.

 Ship from China to US, UK, Australia, Canada, Germany, EU, and some Asia countries, please check the EU and Asia countries lists below
 Package

Shipping

Fee

Order Handling Time (Business Day)

Delivery (Business Day)

Shipping Methods

Import 

Tax

small package

(1-7.9kgs)

Free 2-3 10-5 FEDEX, UPS, DHL, DPD, GLS, Post or Evri, etc.,

Yes, if you

are asked

to pay

8kgs<package

<80kgs

Free 2-4 10-15 or 30-35 By air or by sea from China to US, EU, UK, CA or AU,  by FEDEX, UPS, DHL, DPD, GLS, Post or Evri, etc., for delivery none

Stealth Bomber

Ebike & Front Wheel

Free 5-7 35-45 By sea from China to US, EU, UK, CA or AU,  by FEDEX, UPS, DHL, DPD, GLS, Post or Evri, etc., for delivery none
Battery Free 3-7 12-18 By air from China to US, EU, UK, CA or AU,  by FEDEX, UPS, DHL, DPD or Evri, etc., for delivery none

 

EU countries list: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden

Some Asia countries list: Japan, Malaysia, Philippines, South Korea, Thailand, Vietnam


Ship from China to United Arab Emirates 
 Package

Shipping

Fee

Order Handling Time (Business Day)

Delivery (Business Day)

Shipping Methods

Import 

Tax

small package

(1-7.9kgs)

Free 2-3 10-15 Special airline from China to UAE

Yes, if you

are asked

to pay

8kgs<package

<40kgs

Calculated at checkout 2-4 10-15  Special airline from China to UAE

Yes, if you

are asked

to pay, normally no

Stealth Bomber

Ebike, Front Wheel & Electric Wheelchair attachment 

Free 5-7 35-45 By sea from China to UAE, then ship it by local delivery company in UAE none
Battery Free 3-7 12-18 Special airline from China to UAE none

 


 Shipping from China to Norway, Switzerland, New Zealand, Mexico, Argentina & Brazil
 package

Shipping

Fee

Order Handling Time (Business Day)

Delivery

(Business

Day)

 Shipping Methods

Import

Tax

small package

(1-5.5kgs)

Free

2-3

10-13

FEDEX, UPS, DHL, etc.,

Yes, if you are asked to pay

6kgs<package

<80kgs

Free 2-4 10-13 FEDEX, UPS, DHL, etc., Yes, if you are asked to pay


Battery
Free 3-5 12-15 FEDEX, UPS, DHL, etc., Yes, if you are asked to pay

 Stealth Bomber

Ebike

We cannot ship this bike to these countries, but the DIY parts package for stealth bomber ebike can be shipped to these countries, the shipping rate and delivery are same to 6kgs<package<80kgs

  


 Shipping from China to Qatar, Saudi Arabia,(We cannot ship Stealth Bomber Ebike to this destination).
 Package

Shipping
Fee

Order Handling Time (Business Day)

Delivery
(Business
Days)

Shipping Methods

Import
Tax

package
(1-30kgs)

calculated 
at checkout
2-3 10-15 FEDEX, UPS, DHL or POST yes, if you are asked to pay 
package>30kgs,
normally the DIY
parts package for stealth bomber Ebike
calculated 
at checkout
2-4 10-15 FEDEX, UPS, DHL or POST yes, if you are asked to pay


Fulfillment & Warehouse Network

We are Authorized Distributor of Unit Pack Power ebike batteries with base factory in Shenzhen China, Oversea warehouse in US, UK, Germany, Australia and Canada. With this advantage, we can provide fast delivery from US, UK, Germany, Australia & Canada.
We are Authorized Distributor of Drvetion electric bicycles with base factory in Guangzhou, China, warehouse in Spain and Germany, which can provide fast delivery to European countries from Spain and Germany.
  • Local Inventory Orders: Orders for items stocked at our US, UK, or EU, CA, Australia are dispatched directly from those local warehouses via local ground couriers (e.g., FedEx, UPS, DHL or DPD).
  • Direct Factory Orders: Items or custom configurations not currently stocked in regional warehouses are shipped directly from our primary manufacturing hub in Guangzhou, China."

Updated on 28th, July, 2026

How to measure wheel size and dropout of a bike

How to Measure a Bike Tire (How to Measure a Bicycle Tire)

In the bicycle field, the wheel size is the size of the bike wheel after you install the tire. So when you get the tire size, you get the bike wheel size.
If you have a bike tire on your wheel, you can generally find required measurement information on the tire wall (side of tire – see picture below).
Tire walls usually display the size as the picture below. 
If you can’t find the sizing on the wall of your tire, here we show you the methods to get your bike wheel size. 

The Standard Method (Easiest and Fastest Ways to Find Bike Tire Size) 

The standard method is to measures the tire width and tire diameter in inches.

How to Measure Bike Wheel Size with the Standard Method

  1. Put your bicycle on its kickstand or against a wall so that it’s stable.
  2. Place the bottom of the tape at the lowest point of the tire (on the ground) and measure in a straight line to the centre of the bike wheel to find your wheel radius (as shown in the image above). Multiply your wheel's radius by two, then it is the wheel's diameter. it is the wheel size.
  3. Measure the tire's width by placing the type across the top of it like the picture below. the number you got is the tire width. Be sure to list the diameter first, followed by the tire width.
  4. Bike wheel diameters are rounded to the nearest half-inch, so if your measurements are just over or under, round up or down to the nearest size.

How To Measure a Bike Wheel (Rim) for Tire Size

If you do not have your bike’s tire to hand, you can determine the tire size by measuring your bike’s rim width in millimetres as well.
Based on the average tire and wheel combinations currently on the market, the following charts illustrate the coinciding tire size and rim length.
Many rims will display their size somewhere, but some rims may be missing this measurement. 
If you cant find measurement on your wheel’s rim, follow the easy steps below that will help you determine the appropriate tire sizes your rim can handle.
  1. With no tire on your bike wheel, position the wheel vertically and hold it steady. 
  2. Take a measuring tape and press it against the inside of the rim, where the tire bead would normally sit.
  3. Measure the internal distance from one side of the rim to the other (as shown in the image above).
  4. Take this width and apply it to the correct table below.

Road Bike Rim Width to Tire Size Chart

Mountain Bike Rim Width to Tire Size Chart
Measure of Wheel
20" -- outer tire: 495mm dia.; rim: 410mm dia.;
24" -- outer tire: 600mm dia.; rim: 517mm dia.
26" -- outer tire: 650mm dia.; rim: 573mm dia.;
700C -- outer tire: 690mm dia.; rim: 635mm dia.
28" -- outer tire: 710mm dia.; rim: 650mm dia.

How to measure the dropout of your bike

The dropout of your bike is important, it can decides if the electric bike kit can fit your bike or not. So before your purchase of an ebike kit, please measure the dropout of your bike first.

Bike dropout is literally called frame spacing, is the inside distance between the two fork ends (drop outs) where the wheel fits in. it is very easy to be measure just by removing the wheel and holding a ruler to measure the place where the wheel came out. please check the following picture.

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