2000W E-Bike Conversion Kit Rear Wheel 50A Controller UKC1 Display 48V 52V Battery Cassette or Freewheel

⚡ 2000W Rear E-Bike Conversion Kit ⚡

Premium rear hub motor kit with UKC1 Plus limiter, 50A sinewave controller, cassette or freewheel axle options, and multiple battery choices.

🚴 Motor & Wheel Options

• 2000W rear gearless hub motor
  35mm wide magnets with 3mm thick magnet design
  M12 cassette axle option – suitable for 1 to 11 speed cassette setups with HG style Shimano hub body
  M14 freewheel axle option – supplied with a 7-speed freewheel pre-installed
  Double wall anodised black MTX39 aluminium rim
  Black stainless steel spokes with stainless steel nipples

⚙️ Compact 50A Sinewave Controller

• The kit is supplied with a small, compact and powerful 50A sinewave controller, designed to deliver smooth acceleration and strong performance.
  
  ✅ Compact design for cleaner installation
  ✅ Designed to mount to the seatpost tube
  ✅ Supplied with mounting bracketry
  ✅ Can also be enclosed inside the supplied waterproof controller box
  ✅ Smooth sinewave power delivery for a better riding feel

🎛️ UKC1 Plus Display Limiter

• The kit comes with the UKC1 Plus display, which includes a built-in limiter option.
  
  Press and hold the minus button for a couple of seconds to activate limiter mode:
  ✅ Throttle limited to approximately 6km/h
  ✅ Pedal assist limited to 25km/h / 15.5mph
  ✅ Designed to HELP comply with UK e-bike laws
  
  ⚠️ Out of the box, this kit is intended for off-road/private land use.

🔋 Battery Options

• Kit Only – no battery included. The controller is supplied with an XT90 connector, so you will need a compatible battery with an XT90 connection.
  48V 30Ah Triangle Battery – Samsung 21700 50GB Grade A cells, 50A BMS, supplied with a 4A charger.
  52V 20Ah Downtube Battery – LG 21700 M50LT Grade A cells, 50A BMS, supplied with a 4A charger.
  52V 30Ah Triangle Battery – LG 21700 M50LT Grade A cells, 60A smart BMS non-Bluetooth, supplied with a 5A fast charger.

📦 What’s Included?

• ✅ 2000W rear hub motor wheel
  ✅ Choice of M12 cassette or M14 7-speed freewheel version
  ✅ 50A sinewave controller
  ✅ UKC1 Plus display with limiter function
  ✅ Suron style full twist throttle with waterproof plug
  ✅ Black waffle grips
  ✅ Pedal assist sensor
  ✅ Double wall aluminium black MTX39 rim
  ✅ Black stainless steel spokes with stainless steel nipples
  ✅ Cable ties
  ✅ Crank removal tool
  ✅ Cassette removal tool
  ✅ 4 x stainless steel custom torque arms designed by UK E Bike Parts®
  ✅ 2 x one-piece teardrop style torque arms
  ✅ 2 x two-piece torque arms
  ✅ 3-to-1 data cable with waterproof plugs for cleaner cable management
  ✅ Waterproof controller box
  ✅ Optional battery bundle depending on selected option
  
  ⚠️ Please note: Brake sensors are not included with this kit. If required, they can be purchased separately for £19.99.

🛡️ Custom Torque Arm System

• This kit includes four stainless steel custom torque arms, designed by UK E Bike Parts®.
  
  You receive both styles so you can choose the best option depending on your bike’s dropout design:
  2 x one-piece teardrop style torque arms
  2 x two-piece torque arms

🛠️ Installation Tips

• 🔧 Make sure axle nuts and torque arms are fitted securely
  🔧 Keep the motor cable away from the disc rotor
  🔧 Check spoke tension after the first few rides
  🔧 If the controller is placed inside the controller box, we recommend adding a few extra ventilation holes
  🔧 Keep the motor phase cables away from the other cables, as they can get hot under heavy load
  🔧 Ensure your frame and dropout spacing are suitable before ordering
  🔧 Professional installation is recommended if you are not experienced with e-bike conversions

❓ FAQs

• ❓ Does this kit include brake sensors?
  ➡️ No. Brake sensors are optional and can be purchased separately for £19.99.
  
  ❓ Can I use throttle only?
  ➡️ Yes, throttle use is supported.
  
  ❓ What is the difference between M12 and M14?
  ➡️ The M12 version is for cassette setups using a Shimano HG style cassette body. The M14 version comes with a 7-speed freewheel pre-installed.
  
  ❓ Can this be limited?
  ➡️ Yes. The UKC1 Plus display limiter helps limit pedal assist to 25km/h / 15.5mph and throttle to around 6km/h.

🛡️ Warranty

• ✔️ 3 months kit warranty
  12 months battery warranty when purchased with a battery option
  Warranty excludes misuse, water damage, wear and tear, incorrect installation, abuse, or unauthorised modifications.

⚖️ Legality

• This kit is supplied as a high-powered conversion kit.
  Out of the box, it is intended for off-road/private land use.
  The UKC1 Plus limiter can HELP limit the system to 25km/h / 15.5mph pedal assist.
  The rider is responsible for following local laws and regulations.

🚚 Shipping & Returns

• 📦 Orders dispatched within 24 hours (Mon–Fri) if ordered before 1PM
• 🚛 Carriers: Royal Mail, DPD or FedEx (Tracked)
• ⏱️ Estimated delivery: 1–2 working days
• ↩️ 30-day FREE returns – Buyer pays postage – Item must be returned in new condition

🤝 Need Help?

• We aim to respond to all messages within 24 hours Monday–Friday 9am – 6pm and some weekends. Our team is always friendly & customer-focused, here to help with your e-bike build. 💬