⚡🚴 Welcome to MCR Electric 🚴⚡

Power. Control. No Compromise.

We build high-performance e-bike conversion kits for riders who want real output — without messy installs or limitations.

And yes… we were one of the first UK sellers to introduce a display-integrated limiter system 💡

Ride compliant when required.
Unlock full power when you choose.

🎛️ Smart Display Limiter – Total Control

All controlled directly from your display.

✅ Cap speed to 15.5mph / 25kmh (adjustable)
✅ Disable throttle for UK road compliance
✅ Restrict output to 250W equivalent

🚀 Switch limiter OFF and release full 2000W performance for private land & off-road riding.

When active, the display clearly shows the 250W symbol.

Simple. Clean. Effective.

🔧 Core Kit Features

🔌 True Plug & Play – No wire cutting
⚙️ Universal Controller – 36V / 48V / 52V compatible
📏 Fits 135mm – 148mm rear dropouts
🧩 Shimano HG Cassette Compatible (7–11 speed)
🛑 Disc brake compatible (160mm – 202mm)

⚠️ Supplied in full-power mode. Rider responsible for enabling road-compliant settings when required.

🔋 Battery Options

Recommended setup:
🔹 48V or 52V battery with 45A+ BMS

Or upgrade to our premium option:

🔋 52V 20Ah Samsung 21700 cells
🟦 50A BMS
🔌 3A UK charger
🧱 Poly 7 case
🔗 XT90 to XT60 adapter included

Built for serious current delivery ⚡

📦 What’s Included

Everything you need to complete the build:

⚡ 2000W Brushless Gearless Rear Hub Motor (135–145mm)
🧩 Shimano HG Cassette Hub Body (7–11 speed)
🛞 MTX39 Double Wall Alloy Rim (Black)
🧵 36 Black Spokes + Stainless Nipples

🖥 UKC1+ Full Colour Display (USB 5V-1A output)
🎛 45A DC Sine Wave Controller (36V / 48V / 52V)
💡 Display-Controlled Headlight
🛑 Magnetic Brake Sensors (hydraulic & cable compatible)
🌀 Half-Twist Throttle + Left Grip
🚴 Pedal Assist Sensor (PAS)
🛡 Waterproof Controller Bag

🦾 4x Stainless Steel Torque Arms (2 frame styles)
🔑 2x Remote Key Fobs

🧰 Tools Included:
Chain whip, cassette tool, crank remover, tyre levers, cable ties & wrap

Optional: 52V 20Ah Samsung battery + charger.

❓ FAQs

❓ Can I run it without PAS?
➡ Yes, but remote key functions require PAS connection.

❓ Are brake sensors mandatory?
➡ No — optional but recommended.

❓ Throttle-only mode supported?
➡ Yes. Works perfectly in off-road setup.

⚠️ Basic DIY knowledge required. Every bike frame differs.

🛡 Warranty

🔧 3 Months – Conversion Kit
🔋 12 Months – Battery

Covers manufacturing faults only.
Excludes misuse, water damage, wear & tear or unauthorised modifications.

Repairs covered by us ✅
Buyer covers shipping 🚚

⚖️ Legal Notice

Limiter mode restricts:
• 250W equivalent output
• 15.5mph max assist
• Throttle disabled

Out of the box = full-power configuration.
You are responsible for complying with UK e-bike regulations.

🛠 Pro Setup Tips

🔧 Tighten axle nuts & torque arms properly
🔧 Always fit torque arms (all supplied)
🔧 Protect motor cable with secure routing
🔧 Remove brake caliper for easier wheel install
🔧 Consider 203mm rotor + adaptor for better clearance
🔧 Apply thread-lock to disc bolts
🔧 Recheck spoke tension after first rides

💡 Slime tubes reduce punctures
💡 GT85 coating helps prevent corrosion

Install properly = long-term reliability.

🧰 Ongoing Maintenance

✅ Check axle nuts regularly
✅ Inspect torque arms
✅ Keep motor cable clear of rotor
✅ Monitor spoke tension after bedding in

Look after it, and it’ll look after you.

🚚 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 proper DIY builds.
If you’re unsure about compatibility or setup — message us first.