3000W E-Bike Conversion Kit | 72V 60A Sine Wave Controller | High-Torque Rear Wheel (26″ / 27.5″ / 29″) | 135 mm Dropout | Single-Speed Electric Bike Kit
£469.00
🚴⚡ Welcome to MCR Electric ⚡🚴
Built for Riders Who Want Real Power.
We supply high-performance electric conversion kits engineered for strength, torque and serious DIY builds.
⚠️ Please read the full description before ordering.
Designed for bikes with minimum 135mm rear dropout width.
⚡ 3KW MTX Rim E-Bike Conversion Kit – 80A High Power Setup ⚡
Extreme Torque. High Current. No Compromise.
This is not a commuter kit.
This is a full-power 3000W build designed for experienced DIY riders.
🔋 Motor & Wheel Setup
⚡ 3000W Brushless Gearless Hub Motor
🧲 Aluminium stator for improved heat control
🚀 3.5T High-Speed Wind – strong torque & rapid acceleration
🔩 M14 Heavy-Duty Axle
⚙️ Screw-On Freewheel (Single Speed)
📏 135mm Dropout Fitment
🛞 All-Black SunRingle Double-Wall Aluminium Rim
🖤 36 Black Stainless Steel Spokes
⛔ Speed Limiter: 15.5mph (removable)
🎛️ Controller & Electrical System
🔌 80A Sine Wave Controller (60V / 72V compatible)
⚡ High-current smooth power delivery
💦 Waterproof Controller Box
🔐 Integrated Alarm System + 2 Key Fobs
🔄 XT150 High-Current Phase Connectors
⚠️ Battery must have BMS rated above 60A minimum.
This setup pulls serious amps — build accordingly.
🛑 Throttle & Braking
⚫ Black Brake Sensor (hydraulic & cable compatible)
🏍️ Full-Twist SurRon Style Throttle
🖤 Black MX Grips
🔧 Includes:
• 5mm brake disc spacer
• 6 × M5×16mm bolts
🛡️ Strength & Mounting
🔩 4 × Stainless Steel Torque Arms (2 styles included)
🧰 Cable wrap, cable ties & tyre levers supplied
Heavy power requires proper reinforcement — torque arms are essential.
🏆 Why Choose This 3KW Kit?
✔️ Stealth all-black pro finish
✔️ Massive torque & strong top-end performance
✔️ High-current 80A controller
✔️ Built for durability under load
✔️ Designed for serious custom builds
This is a performance platform.
🛠️ Product Specs
🛞 Wheel Sizes: 26″ / 27.5″ / 29″ (rear, single speed)
📏 Dropout: 135mm
🛑 Disc Brake Compatible (160mm–202mm)
🎚️ Optional Magnetic Brake Levers available
🕹️ Throttle-only setup supported
⚡ Power & Performance
🚀 3000W Gearless Motor (45H magnets)
⚡ Up to approx 50–58mph at 84V
🔋 Estimated 20–35 miles per charge
(Performance depends on rider weight, terrain & setup.)
⚠️ Important
🛠 DIY experience required.
Every frame is different — take your time during installation.
Higher voltage = higher heat.
Proper setup ensures reliability.
🛡 Warranty
🔧 3 Months – Conversion Kit
🔋 12 Months – Battery
Does NOT cover:
• Abuse
• Water damage
• Connector tampering
• Label removal
• Incorrect installation
Warranty repairs covered by us — buyer covers shipping.
💡 Pro Setup Tips
✅ Confirm battery fit before ordering
🔒 Always tighten axle nuts & torque arms securely
🔌 Protect motor cable carefully during install
⚙ Remove plastic spacer before fitting disc rotor
🚲 Use slime tubes for puncture protection
🔧 Remove brake caliper before fitting wheel
🔄 If wheel doesn’t spin freely, check phase wires
🛠 PAS install requires crank removal tool (included)
🧴 Apply thread-lock to rotor bolts
🔩 Re-check spoke tension after first rides
🔐 Always fit torque arms
Best suited to 3000W for long-term reliability.
🛠 Maintenance
🔒 Check axle nuts & torque arms regularly
🔌 Keep motor cable clear of disc rotor
🛡 Light GT85 coating helps prevent corrosion
🔧 Routine checks = safety & longevity
🚚 Shipping
🚚 Same-day dispatch on all orders placed before the daily cut-off — fast UK delivery
⚡ MCR Electric — Built for dependable riding
🔄 Returns
📅 14-day return policy
⚠️ Must be unused & complete
🚚 Buyer covers return shipping
🤝 Need Advice?
We support serious DIY builders.
If you’re unsure about compatibility or battery pairing — message us first.
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OUR MISSION
Our mission is to make electric mobility more accessible, reliable, and sustainable by providing expertly sourced products and personalised customer service. Whether you're looking to convert a standard bicycle or invest in a ready-to-ride electric model, we offer trusted solutions tailored to a variety of needs and budgets.
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