⚡ Ultimate 2000W 72V Rear Wheel E-Bike Conversion Kit – High Torque • 45A Sine Wave Controller

72V Performance • MTX39 Wheel • UKC1 Display • Plug & Play Waterproof System

Take your custom e-bike build to the next level with the MCR Electric Ultimate 2000W 72V Rear Wheel Conversion Kit. Designed for riders who demand exceptional torque, rapid acceleration and outstanding reliability, this complete conversion kit is built using premium components throughout.

Powered by a 2000W high-torque brushless hub motor and matched with a 45A pure sine wave controller, this setup delivers smooth, responsive power with peak outputs of around 3000W when paired with a suitable battery.

Ideal for riders wanting an excellent balance between performance, weight and reliability.

Full-power mode is intended for off-road or private land use only.

🔋 Purchase Options

Choose the option that suits your build:

• ✔️ Conversion Kit Only (for customers with a compatible 72V battery)

• ✔️ Complete Kit with 72V 20Ah Battery and Charger

⚡ Kit Features

• ✔️ 2000W High-Torque Brushless Rear Hub Motor

• ✔️ 72V 45A Pure Sine Wave Controller

• ✔️ Original MTX39 Double-Wall Aluminium Rim

• ✔️ 36 Black Stainless Steel Spokes

• ✔️ Silver Stainless Steel Nipples

• ✔️ UKC1 Full Colour LCD Display

• ✔️ SUR-RON Style Full Twist Throttle

• ✔️ Soft Black Comfort Grips

• ✔️ Pedal Assist Sensor (PAS)

• ✔️ Waterproof Controller Bag

• ✔️ Waterproof Cable Management Box

• ✔️ 4 Heavy-Duty Torque Arms (Two Designs Included)

• ✔️ XT150 Phase Connectors

• ✔️ XT90 Battery Connector

• ✔️ Crank Removal Tool

• ✔️ Tyre Levers

• ✔️ Cable Ties

• ✔️ Spiral Cable Wrap

• ✔️ Fully Waterproof Plug-and-Play Connections

🛞 Wheel & Motor

• ✔️ 2000W Brushless Rear Hub Motor

• ✔️ High-Torque Direct Drive Design

• ✔️ M14 Axle (14mm Round / 10mm Flats)

• ✔️ Original MTX39 Double-Wall Rim

• ✔️ Disc Brake Compatible

• ✔️ 16T Single-Speed Freewheel Included

• ✔️ Heavy-duty wheel build for high-power applications

🔋 Optional Battery

72V 20Ah Premium Lithium Battery

• ✔️ Grade A Samsung 50S 21700 Cells

• ✔️ 60A Smart BMS

• ✔️ 3A UK Fast Charger Included

• ✔️ Compact Hard-Case Design

• ✔️ High Continuous Power Output

• ✔️ Built for maximum reliability and performance

📱 UKC1 Colour Display

Monitor all your ride information, including:

• ✔️ Battery Voltage

• ✔️ Speed

• ✔️ Power Output

• ✔️ Trip Distance

• ✔️ Maximum Speed

• ✔️ Pedal Assist Levels (1–5)

• ✔️ Speed Limiter Function

⚙️ Speed Limiter Mode

For controlled riding, the UKC1 display includes a selectable speed limiter.

To activate:

• Hold the Minus (-) button for approximately 3 seconds.

Repeat the process to return to full-power mode.

⚡ Performance

This kit offers an outstanding combination of:

• ✔️ Exceptional torque

• ✔️ Rapid acceleration

• ✔️ Smooth sine wave power delivery

• ✔️ Reduced motor noise

• ✔️ Peak power of approximately 3000W (battery dependent)

• ✔️ Lighter than a full 3000W conversion kit while still delivering serious performance

🛡️ Warranty

• ✔️ 3-Month Warranty on Conversion Kit Components

• ✔️ 12-Month Warranty on MCR Electric Batteries (when purchased)

Warranty excludes accidental damage, misuse, water ingress and unauthorised modifications.

🚚 Shipping

• 📦 Orders dispatched within 24 hours (Monday–Friday) when ordered before 1:00 PM

• 🚛 Fully tracked UK delivery

• ⏱️ Estimated delivery: 2–3 working days

• 📧 Tracking information provided once dispatched

↩️ Returns

• ✔️ 14-day returns policy

• ✔️ Item must be unused and returned complete with all supplied components

• ❗ Return postage costs are the responsibility of the buyer

⚠️ Important Notice

This conversion kit is capable of producing performance levels that exceed UK Electrically Assisted Pedal Cycle (EAPC) limits when operated in full-power mode.

Full-power mode is intended for use on private land only with the landowner's permission. It is the rider's responsibility to ensure the bike is used in accordance with all applicable local laws and regulations.

🤝 Why Choose MCR Electric?

• 🇬🇧 UK-based expert support

• 🚚 Fast UK dispatch

• 🔧 Every kit tested before shipping

• ⚡ Premium waterproof plug-and-play wiring

• 🛠️ Quality components trusted by custom e-bike builders across the UK

• 🛒 Wide range of motors, batteries, controllers, displays and accessories available