
ACX 500w kit
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Fits or we sort it. Send a photo of your bike before you buy and we confirm it fits.
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Samsung cells in every battery. Not a no name pack.
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Tracked delivery on every order. You get a tracking number as soon as it ships.
- Wheel size:26 / 27.5 / 29
- Display:SW900 / UKC1
- Brand:ACX Ebikes
- Included Components:Motorised wheel, controller, display (SW900 or UKC1), throttle and brake levers, pedal-assist sensor, wiring loom and connectors, dual reinforced torque arms
- Battery:Not included — sold separately (see our Batteries collection)
Delivery time
Shipped direct from our factory
UK orders arrive in around 2 to 3 weeks. International orders arrive in 2 to 4 weeks.
Need it faster? Our 2000W and 3000W bundles with 27.5 or 29 inch wheels ship from our UK warehouse and arrive in around 3 working days.
ACX 500W Conversion Kit
Check this before you order
Rear dropout width: 135mm. Measure the gap between the inside faces of the two rear frame arms where the wheel sits.
Axle: quick release or bolt on, both fine.
Freewheel: screw on, up to 7 speed.
Battery not included. Our 72V pack is 445mm base x 265mm tall x 90mm wide, so check your front triangle takes that before you add one.
Not sure? Email us a photo of your rear dropout and we will tell you before you buy.
Transform your everyday bicycle into a smooth, efficient electric bike with the ACX 500W Conversion Kit. Designed for commuting, leisure rides, and daily transport, this kit delivers reliable power, quiet operation, and an enjoyable riding experience while maintaining excellent battery efficiency.
Whether you're looking to flatten hills, reduce effort on longer rides, or simply enjoy the convenience of electric assistance, the ACX 500W Kit is the perfect upgrade.
Performance
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500W Brushless Rear Hub Motor
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Top Speed: Up to 35 km/h (22 mph) (depending on battery, rider weight, and riding conditions)
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Smooth and efficient power delivery
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Compatible with 36V and 48V battery systems (battery sold separately)
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LCD Display for speed, battery level, and riding data
What's Included
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500W Rear Hub Motor pre-laced into a durable rim
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Controller
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LCD Display
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Thumb or Twist Throttle
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Pedal Assist Sensor (PAS)
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Brake Levers with Motor Cut-Off
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All required wiring and installation hardware
Why Choose the ACX 500W Kit?
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Reliable performance for everyday commuting
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Excellent hill-climbing assistance
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Quiet, low-maintenance brushless motor
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Energy-efficient design for longer rides
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Easy installation on most compatible bicycles
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Ideal for commuters, students, and recreational riders
Compatibility
Compatible with most bicycles featuring open rear dropouts (quick-release style). Please select the correct wheel size before ordering.
Battery not included. For the best performance, we recommend pairing the kit with a high-quality 36V or 48V lithium battery.
Please note: Top speed and range will vary depending on battery voltage, battery capacity, rider weight, terrain, weather, and riding style. Always check your local laws and regulations regarding electric bike power and road use before riding.
Standard shipping: 50–60 days (shipped by sea). Need it sooner? Express shipping is available at checkout for an additional cost, arriving in 15–20 days.
30-day return window on unused kits. 12-month warranty on motor, controller and battery. Reach out via the chat widget for support.
Do I need special tools to install the kit?
Most kits can be installed with basic bike maintenance tools. Each kit comes with clear, step-by-step instructions.
Is the kit water-resistant?
Yes. Key components are protected against splashes and light moisture. Avoid fully submerging parts or using high-pressure washers.
Are conversion kits legal?
Regulations vary by country and region. Many areas permit motors up to 250W; 250W stickers and speed limiters can be used to comply with local laws.
How far can I ride on a single charge?
Range depends on battery capacity, terrain, rider weight, and riding mode. Actual distance may vary significantly.
Don't just take our word for it
Every video below was filmed by a customer with the exact kit you're looking at — unboxing, fitting and riding it.
★★★★★“Kit came on time, very good quality, easy to install. Best thing I ever bought.”
Michael · Verified buyer
★★★★★“Kit is crazy good and customer service is amazing.”
James · Verified buyer
★★★★★“Very good help from staff, very quick responses. My kit just arrived and I am very happy with it.”
Oliver D. · Verified buyer
★★★★★“Bought a bundle last week and it arrived today. Really good quality, would recommend.”
Riley W. · Verified buyer · Bundle
Everything in the kit
Motor-only kit — pair it with an ACX battery. Every kit ships wired, tested and ready to fit — here's what's inside.
- Motorised hub wheel
- Controller
- SW900 or UKC1 display
- Throttle
- Brake levers with cut-off
- Pedal-assist sensor
- Wiring loom & connectors
- Quick-start fitting guide
- Dual reinforced torque arms
Battery not included — sold separately. Wheel size and display are chosen at checkout.
Recommended add-onACX Battery BagKeeps your battery protected and secured to the frame. Not included with kits or bundles.
Add · £45.00