1200w ebike conversion kit rear wheel with UKC1 TFT Display

rear wheel ebike kit 1200w with SW900 LCD Display

twist throttle for electric hub motors for bicycles

Waterproof 36v 48v 350 -1200w ebike conversion kit rear wheel with built-in controller

Name: Waterproof 36v 48v 350 -1200w ebike conversion kit rear wheel with built-in controller
Brand: theebikemotorkit
SKU: 36v48v1200-20R-LCD
Price: 458.00 USD
Availability: InStock

Free Shipping to US, UK, EU, AU, CA, NZ, NO, CH, MX, SG, VNM

$458.00 SGD

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1, Programmable Built-In Internal Controller, Whisper Quiet; Rear Wheel Motor dropout 135mm
a, With LCD display, you can switch the motor voltage between 36V-48V( but of course you need to use the accordingly voltage battery to work with it,
b, you can adjust the speed of the motor by P08 Setting of the LCD display, P03=changing voltage (36v/48v); P08=speed limit setting; P14=Adjusting current.
2, 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.
3, Top Speed: 55km/h goes with 26" wheel if you program it at 1200W;
4, Torque: 40 N./M Max if you program it at 1200W.
5, The kit includes 1200W brushless gearless rear motor with built-in controller and rear wheel x 1; throttle x 1; pair of brake lever x 1; PAS x 1; full set of waterproof cable and quick release plugs x 1; LCD display or TFT display x 1
6, We ship to United Arab Emirates, Saudi Arabia, Qatar too

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Estimate delivery times: 10-30 Business days. Depends on Your Selection of Delivery.

Return within 30 days of purchase. Duties & taxes are non-refundable.

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About This Product

Voltage: 36V 48V

Motor Power: 1200 W;

Number of Speed: 7 ;

Max Speed: ;

Motor Type: BLDC Brushless Rear Hub Motor ;

Tire Type: No tire included

Brake Type: No disc bfrake included

Color: ;

Item Condition: New

Components Included

Waterproof 1200W E-Bike Conversion Kit Rear Wheel with Built-In Controller

Product Overview

The Waterproof 1200W E-Bike Conversion Kit with Built-In Controller delivers a clean, wire-free installation by housing the intelligent motor controller inside the rear direct-drive hub. Capable of speeds up to 30 mph (50 km/h) and 40 N.m of high-torque output, this 48V kit converts standard 20", 24", 26", 27.5", and 28"/29" (700C) bicycles into high-speed electric bikes without the clutter of an external controller box. Featuring IP65 waterproof quick-connect wiring, dual-voltage support (36V/48V), an SW900 LCD or UKC1 Color TFT display, and 135mm rear dropout fitment with a threaded freewheel mount, this is the ideal kit for sleek commuter and off-road conversions.

Technical Specifications

Feature	Specification
Motor Type	1200W Brushless Gearless Rear Hub Motor (BLDC Direct Drive)
Controller Setup	Built-In / Integrated Sine-Wave Controller (Inside Hub Shell)
Operating Voltage	48V Nominal (Compatible with 36V & 48V Lithium Packs)
Top Speed	Approx. 45–50 km/h (28–32 mph) (varies by load & terrain)
Max Torque	40 N.m High Torque Output
Rear Dropout Width	Standard 135mm Rear Fork Dropout
Drivetrain Support	Fits Standard Threaded 6-Speed or 7-Speed Freewheel
Wheel Sizes Available	20", 24", 26", 27.5", 28" / 29" / 700C (Double-Wall Aluminum Rim)
Waterproof Rating	IP65 Water & Dust Resistant (Sealed Harness & Quick-Release Plugs)
Display Options	SW900 Backlit LCD OR UKC1 Full-Color TFT Display
Brake Compatibility	Standard 6-Bolt Disc Brake Rotor Mount
Recommended Battery	36V or 48V Lithium-ion Battery with 30A Continuous BMS

Key Features & Performance Highlights

Integrated Internal Controller Design: Eliminates bulky external controller bags, exposed wiring, and frame clutter. The sine-wave controller is built directly inside the motor casing for maximum frame aesthetic and easier mounting.
IP65 Waterproof Cable Harness: Sealed quick-release waterproof connectors prevent short circuits during wet-weather riding, rain exposure, and off-road puddle splashes.
Streamlined Plug-and-Play Assembly: Single-cable main harness feeds from the rear wheel to the handlebars, drastically reducing setup time and wire management during conversion.
Display Telemetry Options:
- SW900 LCD Screen: Provides backlit display for speed, trip odometer, battery voltage gauge, 5-level Pedal Assist (PAS), and diagnostic fault codes.
- UKC1 Color TFT Screen: Upgrades to a full-color interface with advanced telemetry metrics, night mode, wattage usage tracking, and speed restriction limits.

What’s Included in the Complete Kit

1x 1200W Rear Wheel Hub Motor with Built-In Sine-Wave Controller
1x Digital Display Option (SW900 LCD or UKC1 Full-Color TFT)
1x IP65 Waterproof Main Wiring Harness
1x Twist Throttle or thumb throttle. Please advise us if you need thumb throttle, otherwise we normally send twist throttle.
2x Electric Safety Brake Levers (Power Cut-Off Sensors)
1x Dual-Hall 12-Magnet Pedal Assist Sensor (PAS)
1x Mounting Harness Set & Zip Ties

Frequently Asked Questions (FAQ)

Q: What are the benefits of an e-bike motor with a built-in controller?

A: A built-in controller eliminates the need to strap an external controller bag or box to your bicycle frame. It simplifies wire routing into a single main cable, giving your conversion a clean, factory-built look.

Q: Does the internal controller overheat inside the rear hub?

A: The integrated controller is engineered with aluminum heat sinking against the hub enclosure to disperse thermal energy during normal operation. For optimal lifespan, pair the motor with a quality 36V or 48V battery rated for a 30A continuous discharge.

Q: How Fast Can This 1200W E-bike Conversion Kit Go?

A: With a 26" wheel, a rider weighing approximately 70–75kg, and suitable riding conditions, the supplier estimates a potential speed of around 45–50km/h (28–32mph).

Actual speed depends on several factors, including: battery voltage and discharge capability, controller current and configuration, rider weight and riding position, wheel size, road gradient, terrain, and wind resistance, motor condition and bicycle setup.

Q: Will this 1200W rear wheel fit my bicycle?

A: Yes, provided your bike has a standard 135mm rear dropout width (spacing) and uses standard quick-release/bolt-on rear fork dropouts. The hub includes threads for a standard 6-speed or 7-speed threaded freewheel.

Q: Is this 1200W e-bike conversion kit waterproof?

A: The system features IP65 water resistance with sealed quick-connect plugs and rubber gasket seals, making it safe for riding in rain and wet road conditions. (Note: Do not submerge the wheel underwater or clean with high-pressure pressure washers).

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

A: The kit ships from China by air, sea, or railway, depending on the selected shipping method.

Air: Approximately 10–15 business days.
Sea to the US: Approximately 28–30 business days.
Railway to the UK and EU: Approximately 30–35 business days.

These are estimated transit times and may vary because of customs processing, carrier schedules, and destination.

For details, see our Shipping Policy.

Q: Will I need to pay import taxes?

A: Import duties, taxes, and customs charges depend on the destination country, shipment method, order details, and applicable regulations. Charges may apply even where they are not normally expected.

To US, UK, EU, AU, normally no import tax. But to New Zealand, Switzerland, Norway, Mexico, Argentina and Brazil, it normally need to pay import tax. For more information about the import tax, please check our shipment & delivery and customs & import tax. before ordering.

1000w rear hub motor dropout

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

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

Put your bicycle on its kickstand or against a wall so that it’s stable.
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.
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.
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.

With no tire on your bike wheel, position the wheel vertically and hold it steady.
Take a measuring tape and press it against the inside of the rim, where the tire bead would normally sit.
Measure the internal distance from one side of the rim to the other (as shown in the image above).
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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Time after purchase	Product Condition	Return	Exchange	Shipping Fee
＜14 Days	(Unopened and Unused) Brand New	√	×	borne by the customer
	(Opened and Unused) Non-Defective Product	√	×	borne by the customer
	(Opened and Used) Defective Product (provide product video)	×	√	borne by the seller
＞14 Days	Non-Defective Product	×	×	/
3 Months	Defective Product (provide product video)	×	√	borne by the seller
6 Months	Defective Product (provide product video)	×	√	borne by the seller
12 Months	Defective Product (provide product video) This does not apply to Controller and LCD, TFT display	×	√	borne by the seller

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Waterproof 36v 48v 350 -1200w ebike conversion kit rear wheel with built-in controller

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Frequently Bought Together

About This Product

Description

Shipment & Delivery

Wheel Size & Bike Dropout Measure

Waterproof 1200W E-Bike Conversion Kit Rear Wheel with Built-In Controller

Product Overview

Technical Specifications

Key Features & Performance Highlights

What’s Included in the Complete Kit

Frequently Asked Questions (FAQ)

Q: What are the benefits of an e-bike motor with a built-in controller?

Q: Does the internal controller overheat inside the rear hub?

Q: How Fast Can This 1200W E-bike Conversion Kit Go?

Q: Will this 1200W rear wheel fit my bicycle?

Q: Is this 1200W e-bike conversion kit waterproof?

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

Q: Will I need to pay import taxes?

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

Shipment & Delivery

How to measure wheel size and dropout of a bike

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

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

How to Measure Bike Wheel Size with the Standard Method

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

Road Bike Rim Width to Tire Size Chart

How to measure the dropout of your bike

Blogs

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Ebike Motor Troubleshooting Videos Collection

Videos About LCD and TFT Display

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