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  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock
  • ROCKBROS Guardian NFC Smart U-Lock - keyless anti-theft bike lock

ROCKBROS Guardian NFC Smart U-Lock: Keyless Anti-Theft Security System

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$79.99

Secure your ride instantly with the ROCKBROS Guardian NFC Smart U-Lock. Forget fumbling for keys—unlock your bike, e-bike, or scooter in under a second with a simple tap! It combines heavy-duty steel protection with modern tech.

Key Features:

  • Keyless Entry: Unlock via NFC card, sticker, or phone.
  • Anti-Theft: Hardened steel resists cutting and sawing.
  • Durable: Silicone coating prevents scratches & weather damage.
  • Backup: Includes mechanical keys & USB-C charging.

Includes: Smart U-Lock, 2 Keys, NFC Card/Sticker, & Cable. Upgrade your security now!

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ROCKBROS Guardian NFC Smart U-Lock unlocked by phone on city street
🔐 NFC Keyless · Anti-Theft

ROCKBROS Guardian NFC Smart U-Lock

Tap your phone. Your bike unlocks. The ROCKBROS Guardian replaces keys entirely with NFC technology, hardened steel construction and IP65 all-weather protection — keyless security built for the urban commuter.

NFC Keyless
Hardened Steel
IP65 Weatherproof
USB-C Rechargeable

NFC
Tap to Unlock

IP65
Weatherproof

USB-C
Rechargeable

Backup
Key Included

Key Features
Lock Smarter. Ride with Confidence.
NFC Keyless Smart Lock
📱
NFC Tap-to-Unlock
Hold your NFC-enabled phone or card to the lock — it opens in under a second. No keys to fumble with, lose or copy. Your phone IS your key.

IP65 Weatherproof USB-C Backup Key
🌧️
IP65 All-Weather Shield
Fully sealed against rain, mud and road spray. IP65 rating means the Guardian keeps working through downpours, puddle splashes and dusty trails without a second thought.

Hardened Steel Anti-Theft Construction
🛡️
Hardened Steel Core
The shackle is forged from hardened manganese steel — resists bolt cutters, hacksaws and hammers. Combined with the anti-drill lock cylinder, it stops opportunistic thieves cold.

Smart Lock Revolution — Rechargeable USB-C
USB-C Rechargeable
Built-in rechargeable battery charges via the same USB-C cable as your phone. A single charge lasts months of daily use — and a backup key is included for complete peace of mind.

Before vs After — Traditional Chain Lock vs ROCKBROS Guardian

Tap Phone to Unlock ROCKBROS Guardian Urban Commute
Keyless Every Single Day

Tap. Unlock. Ride.

No reaching for keys at the bottom of your bag. No frozen keyholes in winter. Just tap your NFC card or phone — the Guardian unlocks instantly. It’s the fastest, most frictionless way to secure your bike in the city.

Instant Access
No Frozen Keys
NFC Card Included

ROCKBROS Guardian Full Feature Breakdown

Compact Enough to Go Everywhere

Fits Your Bag. Locks Your Bike.

The Guardian is slim enough to fit alongside your wallet and travel mug — yet strong enough to stop a determined thief. Mounts directly to your frame with the included bracket so it’s always with you, never left at home.

Frame Mount Included
Pocket Portable
Bike & Scooter

ROCKBROS Guardian size comparison and bike mount

Product Details
Full Specifications
Technical Specifications
Product Type NFC Smart U-Lock with Keyless Anti-Theft System
Unlock Method NFC tap (phone or card) + backup physical key
Shackle Material Hardened manganese steel
Weather Rating IP65 — dust-tight & rain-resistant
Power Built-in rechargeable battery, USB-C charging
Battery Life Months per charge with daily use
Compatible With NFC-enabled smartphones & NFC cards
Suitable For Bicycles, e-bikes, scooters
Brand ROCKBROS

In The Box
Everything Included
🔐

Guardian U-Lock
NFC smart lock body

📱

NFC Card
Tap-to-unlock access card

🗝️

Backup Key
Physical emergency key

🔌

USB-C Cable
For battery recharging

🚲

Frame Bracket
Secure bike mount

Specifications

  • Brand: ROCKBROS
  • Lock Type: Smart Electronic U-Lock
  • Material: Hardened Steel, Zinc Alloy, Silicone/PVC Coating
  • Unlocking Methods: NFC Induction (Card/Sticker/Device) and Mechanical Key
  • Response Time: < 1 Second
  • Charging Interface: USB Type-C
  • Water Resistance: Weather-resistant design with sealed ports
  • Application: Bicycles, E-bikes, Motorcycles, Scooters, Glass Doors

What is Included in the Packaging

  • 1 x ROCKBROS NFC Smart U-Lock
  • 2 x Mechanical Backup Keys
  • 1 x NFC Induction Card
  • 1 x NFC Adhesive Sticker (for phone application)
  • 1 x USB Type-C Charging Cable
  • 1 x User Manual